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Finding the Fourth Proportional to 15,239.34, 22,865.82 and 9,691.20

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Solution

The fourth proportional to 15,239.34, 22,865.82 and 9,691.20 is: 14,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.34 : 22,865.82 = 9,691.20 : x
  2. Step 2: Convert to fraction form
    15,239.34/22,865.82 = 9,691.20/x
  3. Step 3: Cross multiply
    15,239.34x = 22,865.82 × 9,691.20
  4. Step 4: Simplify right side
    15,239.34x = 221,597,234.78
  5. Step 5: Solve for x
    x = 221,597,234.78/15,239.34
  6. Step 6: Final answer
    x = 14,541.13

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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.