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Finding the Fourth Proportional to 8,329.68, 12,494.52 and 6,660.27

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Solution

The fourth proportional to 8,329.68, 12,494.52 and 6,660.27 is: 9,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.68 : 12,494.52 = 6,660.27 : x
  2. Step 2: Convert to fraction form
    8,329.68/12,494.52 = 6,660.27/x
  3. Step 3: Cross multiply
    8,329.68x = 12,494.52 × 6,660.27
  4. Step 4: Simplify right side
    8,329.68x = 83,216,876.72
  5. Step 5: Solve for x
    x = 83,216,876.72/8,329.68
  6. Step 6: Final answer
    x = 9,990.41

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Double scale
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Similar ratio
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1.5x scale

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.