Home / 10,010.16-13,815.35-9,681.57

Finding the Fourth Proportional to 10,010.16, 13,815.35 and 9,681.57

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Solution

The fourth proportional to 10,010.16, 13,815.35 and 9,681.57 is: 13,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,010.16 : 13,815.35 = 9,681.57 : x
  2. Step 2: Convert to fraction form
    10,010.16/13,815.35 = 9,681.57/x
  3. Step 3: Cross multiply
    10,010.16x = 13,815.35 × 9,681.57
  4. Step 4: Simplify right side
    10,010.16x = 133,754,229.69
  5. Step 5: Solve for x
    x = 133,754,229.69/10,010.16
  6. Step 6: Final answer
    x = 13,361.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.