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Finding the Fourth Proportional to 8,177.52, 12,321.39 and 6,748.68

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Solution

The fourth proportional to 8,177.52, 12,321.39 and 6,748.68 is: 10,168.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.52 : 12,321.39 = 6,748.68 : x
  2. Step 2: Convert to fraction form
    8,177.52/12,321.39 = 6,748.68/x
  3. Step 3: Cross multiply
    8,177.52x = 12,321.39 × 6,748.68
  4. Step 4: Simplify right side
    8,177.52x = 83,153,118.27
  5. Step 5: Solve for x
    x = 83,153,118.27/8,177.52
  6. Step 6: Final answer
    x = 10,168.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.