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Finding the Fourth Proportional to 8,553.38, 12,819.53 and 6,074.78

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Solution

The fourth proportional to 8,553.38, 12,819.53 and 6,074.78 is: 9,104.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.38 : 12,819.53 = 6,074.78 : x
  2. Step 2: Convert to fraction form
    8,553.38/12,819.53 = 6,074.78/x
  3. Step 3: Cross multiply
    8,553.38x = 12,819.53 × 6,074.78
  4. Step 4: Simplify right side
    8,553.38x = 77,875,729.98
  5. Step 5: Solve for x
    x = 77,875,729.98/8,553.38
  6. Step 6: Final answer
    x = 9,104.68

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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.