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Finding the Fourth Proportional to 8,751.52, 13,127.28 and 3,557.80

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Solution

The fourth proportional to 8,751.52, 13,127.28 and 3,557.80 is: 5,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.52 : 13,127.28 = 3,557.80 : x
  2. Step 2: Convert to fraction form
    8,751.52/13,127.28 = 3,557.80/x
  3. Step 3: Cross multiply
    8,751.52x = 13,127.28 × 3,557.80
  4. Step 4: Simplify right side
    8,751.52x = 46,704,236.78
  5. Step 5: Solve for x
    x = 46,704,236.78/8,751.52
  6. Step 6: Final answer
    x = 5,336.70

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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.