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Finding the Fourth Proportional to 8,658.36, 12,987 and 2,502.36

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Solution

The fourth proportional to 8,658.36, 12,987 and 2,502.36 is: 3,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.36 : 12,987 = 2,502.36 : x
  2. Step 2: Convert to fraction form
    8,658.36/12,987 = 2,502.36/x
  3. Step 3: Cross multiply
    8,658.36x = 12,987 × 2,502.36
  4. Step 4: Simplify right side
    8,658.36x = 32,498,149.32
  5. Step 5: Solve for x
    x = 32,498,149.32/8,658.36
  6. Step 6: Final answer
    x = 3,753.38

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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.