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Find y in a proportional relationship

Grade 7 math · Fieldbook Learning

Name ______________________ Date __________

Find k from the first pair, then multiply k by the new x.

  1. y is proportional to x. When x = 2, y = 10. What is y when x = 7?
  2. y is proportional to x. When x = 7, y = 28. What is y when x = 5?
  3. y is proportional to x. When x = 3, y = 15. What is y when x = 4?
  4. y is proportional to x. When x = 4, y = 20. What is y when x = 8?
  5. y is proportional to x. When x = 8, y = 64. What is y when x = 9?
  6. y is proportional to x. When x = 4, y = 28. What is y when x = 8?
  7. y is proportional to x. When x = 4, y = 36. What is y when x = 5?
  8. y is proportional to x. When x = 8, y = 24. What is y when x = 3?
  9. y is proportional to x. When x = 7, y = 56. What is y when x = 12?
  10. y is proportional to x. When x = 4, y = 32. What is y when x = 12?
  11. y is proportional to x. When x = 2, y = 8. What is y when x = 5?
  12. y is proportional to x. When x = 4, y = 36. What is y when x = 11?
  13. y is proportional to x. When x = 3, y = 33. What is y when x = 20?
  14. y is proportional to x. When x = 9, y = 27. What is y when x = 15?
  15. y is proportional to x. When x = 3, y = 24. What is y when x = 5?
  16. y is proportional to x. When x = 3, y = 21. What is y when x = 6?
  17. y is proportional to x. When x = 6, y = 78. What is y when x = 3?
  18. y is proportional to x. When x = 3, y = 9. What is y when x = 20?
  19. y is proportional to x. When x = 5, y = 80. What is y when x = 28?
  20. y is proportional to x. When x = 7, y = 91. What is y when x = 11?
More free practice: fieldbooklearning.com/practice/grade-7/find-y-in-a-proportional-relationship/

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Answer key: Find y in a proportional relationship

  1. 35
  2. 20
  3. 20
  4. 40
  5. 72
  6. 56
  7. 45
  8. 9
  9. 96
  10. 96
  11. 20
  12. 99
  13. 220
  14. 45
  15. 40
  16. 42
  17. 39
  18. 60
  19. 448
  20. 143