Home / 10,691.20-14,753.28-5,910.88

Finding the Fourth Proportional to 10,691.20, 14,753.28 and 5,910.88

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Solution

The fourth proportional to 10,691.20, 14,753.28 and 5,910.88 is: 8,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.20 : 14,753.28 = 5,910.88 : x
  2. Step 2: Convert to fraction form
    10,691.20/14,753.28 = 5,910.88/x
  3. Step 3: Cross multiply
    10,691.20x = 14,753.28 × 5,910.88
  4. Step 4: Simplify right side
    10,691.20x = 87,204,867.69
  5. Step 5: Solve for x
    x = 87,204,867.69/10,691.20
  6. Step 6: Final answer
    x = 8,156.70

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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.