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Solve proportions: find the missing value

Grade 7 math · Fieldbook Learning

Name ______________________ Date __________

Cross-multiply, then divide to get x on its own.

  1. Solve the proportion for x: 6/6 = x/24
  2. Solve the proportion for x: 2/3 = x/9
  3. Solve the proportion for x: 3/5 = x/20
  4. Solve the proportion for x: 8/6 = x/36
  5. Solve the proportion for x: 5/2 = x/12
  6. Solve the proportion for x: 4/3 = x/18
  7. Solve the proportion for x: 7/2 = x/6
  8. Solve the proportion for x: 6/10 = x/20
  9. Solve the proportion for x: 5/9 = x/45
  10. Solve the proportion for x: 7/9 = x/45
  11. Solve the proportion for x: 7/12 = x/60
  12. Solve the proportion for x: 12/6 = x/24
  13. Solve the proportion for x: 14/7 = x/35
  14. Solve the proportion for x: 2/5 = x/45
  15. Solve the proportion for x: 11/14 = x/56
  16. Solve the proportion for x: 6/8 = x/64
  17. Solve the proportion for x: 6/3 = x/9
  18. Solve the proportion for x: 13/5 = x/10
  19. Solve the proportion for x: 11/12 = x/60
  20. Solve the proportion for x: 13/3 = x/9
More free practice: fieldbooklearning.com/practice/grade-7/solve-proportions-find-the-missing-value/

Play it as a quiz game

20 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

  1. Download the game's own question template: in Kahoot, Add question → Import spreadsheet; in Blooket, Create a set → Spreadsheet import.
  2. Click the matching button below, then click the first empty question row of the template and paste.
  3. Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.
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Answer key: Solve proportions: find the missing value

  1. 24
  2. 6
  3. 12
  4. 48
  5. 30
  6. 24
  7. 21
  8. 12
  9. 25
  10. 35
  11. 35
  12. 48
  13. 70
  14. 18
  15. 44
  16. 48
  17. 18
  18. 26
  19. 55
  20. 39