Home / 10,572.29-15,866.13-8,517.12

Finding the Fourth Proportional to 10,572.29, 15,866.13 and 8,517.12

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Solution

The fourth proportional to 10,572.29, 15,866.13 and 8,517.12 is: 12,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.29 : 15,866.13 = 8,517.12 : x
  2. Step 2: Convert to fraction form
    10,572.29/15,866.13 = 8,517.12/x
  3. Step 3: Cross multiply
    10,572.29x = 15,866.13 × 8,517.12
  4. Step 4: Simplify right side
    10,572.29x = 135,133,733.15
  5. Step 5: Solve for x
    x = 135,133,733.15/10,572.29
  6. Step 6: Final answer
    x = 12,781.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.