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Finding the Fourth Proportional to 8,917.48, 13,379.27 and 3,372.42

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Solution

The fourth proportional to 8,917.48, 13,379.27 and 3,372.42 is: 5,059.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.48 : 13,379.27 = 3,372.42 : x
  2. Step 2: Convert to fraction form
    8,917.48/13,379.27 = 3,372.42/x
  3. Step 3: Cross multiply
    8,917.48x = 13,379.27 × 3,372.42
  4. Step 4: Simplify right side
    8,917.48x = 45,120,517.73
  5. Step 5: Solve for x
    x = 45,120,517.73/8,917.48
  6. Step 6: Final answer
    x = 5,059.78

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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.