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Finding the Fourth Proportional to 8,387.02, 12,581.82 and 2,542.24

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Solution

The fourth proportional to 8,387.02, 12,581.82 and 2,542.24 is: 3,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.02 : 12,581.82 = 2,542.24 : x
  2. Step 2: Convert to fraction form
    8,387.02/12,581.82 = 2,542.24/x
  3. Step 3: Cross multiply
    8,387.02x = 12,581.82 × 2,542.24
  4. Step 4: Simplify right side
    8,387.02x = 31,986,006.08
  5. Step 5: Solve for x
    x = 31,986,006.08/8,387.02
  6. Step 6: Final answer
    x = 3,813.75

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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.