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Finding the Fourth Proportional to 8,752.91, 13,127.81 and 3,487.48

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Solution

The fourth proportional to 8,752.91, 13,127.81 and 3,487.48 is: 5,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.91 : 13,127.81 = 3,487.48 : x
  2. Step 2: Convert to fraction form
    8,752.91/13,127.81 = 3,487.48/x
  3. Step 3: Cross multiply
    8,752.91x = 13,127.81 × 3,487.48
  4. Step 4: Simplify right side
    8,752.91x = 45,782,976.20
  5. Step 5: Solve for x
    x = 45,782,976.20/8,752.91
  6. Step 6: Final answer
    x = 5,230.60

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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.