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Constant of proportionality from a pair of values

Grade 7 math · Fieldbook Learning

Name ______________________ Date __________

The constant of proportionality is y divided by x.

  1. y is proportional to x. When x = 8, y = 16. Find the constant of proportionality k in y = kx.
  2. y is proportional to x. When x = 7, y = 21. Find the constant of proportionality k in y = kx.
  3. y is proportional to x. When x = 9, y = 27. Find the constant of proportionality k in y = kx.
  4. y is proportional to x. When x = 7, y = 49. Find the constant of proportionality k in y = kx.
  5. y is proportional to x. When x = 2, y = 12. Find the constant of proportionality k in y = kx.
  6. y is proportional to x. When x = 9, y = 72. Find the constant of proportionality k in y = kx.
  7. y is proportional to x. When x = 3, y = 15. Find the constant of proportionality k in y = kx.
  8. y is proportional to x. When x = 12, y = 84. Find the constant of proportionality k in y = kx.
  9. y is proportional to x. When x = 14, y = 70. Find the constant of proportionality k in y = kx.
  10. y is proportional to x. When x = 15, y = 105. Find the constant of proportionality k in y = kx.
  11. y is proportional to x. When x = 4, y = 8. Find the constant of proportionality k in y = kx.
  12. y is proportional to x. When x = 3, y = 24. Find the constant of proportionality k in y = kx.
  13. y is proportional to x. When x = 9, y = 18. Find the constant of proportionality k in y = kx.
  14. y is proportional to x. When x = 4, y = 52. Find the constant of proportionality k in y = kx.
  15. y is proportional to x. When x = 17, y = 204. Find the constant of proportionality k in y = kx.
  16. y is proportional to x. When x = 18, y = 306. Find the constant of proportionality k in y = kx.
  17. y is proportional to x. When x = 23, y = 529. Find the constant of proportionality k in y = kx.
  18. y is proportional to x. When x = 17, y = 272. Find the constant of proportionality k in y = kx.
  19. y is proportional to x. When x = 5, y = 75. Find the constant of proportionality k in y = kx.
  20. y is proportional to x. When x = 20, y = 140. Find the constant of proportionality k in y = kx.
More free practice: fieldbooklearning.com/practice/grade-7/constant-of-proportionality-from-a-pair-of-values/

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Answer key: Constant of proportionality from a pair of values

  1. 2
  2. 3
  3. 3
  4. 7
  5. 6
  6. 8
  7. 5
  8. 7
  9. 5
  10. 7
  11. 2
  12. 8
  13. 2
  14. 13
  15. 12
  16. 17
  17. 23
  18. 16
  19. 15
  20. 7