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Finding the Fourth Proportional to 8,327.68, 12,491.52 and 2,488.39

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Solution

The fourth proportional to 8,327.68, 12,491.52 and 2,488.39 is: 3,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.68 : 12,491.52 = 2,488.39 : x
  2. Step 2: Convert to fraction form
    8,327.68/12,491.52 = 2,488.39/x
  3. Step 3: Cross multiply
    8,327.68x = 12,491.52 × 2,488.39
  4. Step 4: Simplify right side
    8,327.68x = 31,083,773.45
  5. Step 5: Solve for x
    x = 31,083,773.45/8,327.68
  6. Step 6: Final answer
    x = 3,732.59

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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.