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Finding the Fourth Proportional to 8,331.34, 12,487.02 and 3,883

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Solution

The fourth proportional to 8,331.34, 12,487.02 and 3,883 is: 5,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.34 : 12,487.02 = 3,883 : x
  2. Step 2: Convert to fraction form
    8,331.34/12,487.02 = 3,883/x
  3. Step 3: Cross multiply
    8,331.34x = 12,487.02 × 3,883
  4. Step 4: Simplify right side
    8,331.34x = 48,487,098.66
  5. Step 5: Solve for x
    x = 48,487,098.66/8,331.34
  6. Step 6: Final answer
    x = 5,819.84

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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.