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Finding the Fourth Proportional to 8,375.07, 12,562.65 and 4,909.89

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Solution

The fourth proportional to 8,375.07, 12,562.65 and 4,909.89 is: 7,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.07 : 12,562.65 = 4,909.89 : x
  2. Step 2: Convert to fraction form
    8,375.07/12,562.65 = 4,909.89/x
  3. Step 3: Cross multiply
    8,375.07x = 12,562.65 × 4,909.89
  4. Step 4: Simplify right side
    8,375.07x = 61,681,229.61
  5. Step 5: Solve for x
    x = 61,681,229.61/8,375.07
  6. Step 6: Final answer
    x = 7,364.86

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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.