Home / 8,387.72-12,582.92-2,542.95

Finding the Fourth Proportional to 8,387.72, 12,582.92 and 2,542.95

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Solution

The fourth proportional to 8,387.72, 12,582.92 and 2,542.95 is: 3,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.72 : 12,582.92 = 2,542.95 : x
  2. Step 2: Convert to fraction form
    8,387.72/12,582.92 = 2,542.95/x
  3. Step 3: Cross multiply
    8,387.72x = 12,582.92 × 2,542.95
  4. Step 4: Simplify right side
    8,387.72x = 31,997,723.70
  5. Step 5: Solve for x
    x = 31,997,723.70/8,387.72
  6. Step 6: Final answer
    x = 3,814.83

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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.