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Finding the Fourth Proportional to 8,338.92, 12,508.38 and 3,407.70

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Solution

The fourth proportional to 8,338.92, 12,508.38 and 3,407.70 is: 5,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.92 : 12,508.38 = 3,407.70 : x
  2. Step 2: Convert to fraction form
    8,338.92/12,508.38 = 3,407.70/x
  3. Step 3: Cross multiply
    8,338.92x = 12,508.38 × 3,407.70
  4. Step 4: Simplify right side
    8,338.92x = 42,624,806.53
  5. Step 5: Solve for x
    x = 42,624,806.53/8,338.92
  6. Step 6: Final answer
    x = 5,111.55

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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.