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Finding the Fourth Proportional to 8,691.35, 13,037.02 and 6,105.83

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Solution

The fourth proportional to 8,691.35, 13,037.02 and 6,105.83 is: 9,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.35 : 13,037.02 = 6,105.83 : x
  2. Step 2: Convert to fraction form
    8,691.35/13,037.02 = 6,105.83/x
  3. Step 3: Cross multiply
    8,691.35x = 13,037.02 × 6,105.83
  4. Step 4: Simplify right side
    8,691.35x = 79,601,747.38
  5. Step 5: Solve for x
    x = 79,601,747.38/8,691.35
  6. Step 6: Final answer
    x = 9,158.74

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Similar ratio
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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.