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Finding the Fourth Proportional to 15,165.38, 22,729.92 and 9,902.91

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Solution

The fourth proportional to 15,165.38, 22,729.92 and 9,902.91 is: 14,842.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,165.38 : 22,729.92 = 9,902.91 : x
  2. Step 2: Convert to fraction form
    15,165.38/22,729.92 = 9,902.91/x
  3. Step 3: Cross multiply
    15,165.38x = 22,729.92 × 9,902.91
  4. Step 4: Simplify right side
    15,165.38x = 225,092,272.31
  5. Step 5: Solve for x
    x = 225,092,272.31/15,165.38
  6. Step 6: Final answer
    x = 14,842.51

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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.