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Finding the Fourth Proportional to 8,552.54, 12,819.02 and 3,865.47

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Solution

The fourth proportional to 8,552.54, 12,819.02 and 3,865.47 is: 5,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,552.54 : 12,819.02 = 3,865.47 : x
  2. Step 2: Convert to fraction form
    8,552.54/12,819.02 = 3,865.47/x
  3. Step 3: Cross multiply
    8,552.54x = 12,819.02 × 3,865.47
  4. Step 4: Simplify right side
    8,552.54x = 49,551,517.91
  5. Step 5: Solve for x
    x = 49,551,517.91/8,552.54
  6. Step 6: Final answer
    x = 5,793.78

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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.