Mr. Bell's MathLearn • Think • Grow

Printable worksheet

Proportions Practice

Solve for x. Show your reasoning and verify each proportion.

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Practice questions

Solve for x. Show your reasoning and verify each proportion.

Name: __________________________    Date: ______________

  1. 2/3 = x/18
  2. 4/9 = x/27
  3. x/8 = 9/12
  4. 5/7 = 15/x
  5. 3/4 = 12/x
  6. x/5 = 18/15
  7. 7/10 = x/30
  8. 2/x = 8/20
  9. 6/11 = 18/x
  10. x/12 = 5/6
  11. 9/15 = 3/x
  12. 4/5 = x/35
Show answer key (for checking)
  1. 2/3 = x/18 → 12
  2. 4/9 = x/27 → 12
  3. x/8 = 9/12 → 6
  4. 5/7 = 15/x → 21
  5. 3/4 = 12/x → 16
  6. x/5 = 18/15 → 6
  7. 7/10 = x/30 → 21
  8. 2/x = 8/20 → 5
  9. 6/11 = 18/x → 33
  10. x/12 = 5/6 → 10
  11. 9/15 = 3/x → 5
  12. 4/5 = x/35 → 28