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Finding the Fourth Proportional to 8,789.08, 13,248.98 and 8,217.73

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Solution

The fourth proportional to 8,789.08, 13,248.98 and 8,217.73 is: 12,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.08 : 13,248.98 = 8,217.73 : x
  2. Step 2: Convert to fraction form
    8,789.08/13,248.98 = 8,217.73/x
  3. Step 3: Cross multiply
    8,789.08x = 13,248.98 × 8,217.73
  4. Step 4: Simplify right side
    8,789.08x = 108,876,540.42
  5. Step 5: Solve for x
    x = 108,876,540.42/8,789.08
  6. Step 6: Final answer
    x = 12,387.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.