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Finding the Fourth Proportional to 8,151.52, 12,227.28 and 5,248.28

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Solution

The fourth proportional to 8,151.52, 12,227.28 and 5,248.28 is: 7,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.52 : 12,227.28 = 5,248.28 : x
  2. Step 2: Convert to fraction form
    8,151.52/12,227.28 = 5,248.28/x
  3. Step 3: Cross multiply
    8,151.52x = 12,227.28 × 5,248.28
  4. Step 4: Simplify right side
    8,151.52x = 64,172,189.08
  5. Step 5: Solve for x
    x = 64,172,189.08/8,151.52
  6. Step 6: Final answer
    x = 7,872.42

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Double scale
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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.