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Finding the Fourth Proportional to 8,952.92, 12,345.07 and 6,120.75

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Solution

The fourth proportional to 8,952.92, 12,345.07 and 6,120.75 is: 8,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,952.92 : 12,345.07 = 6,120.75 : x
  2. Step 2: Convert to fraction form
    8,952.92/12,345.07 = 6,120.75/x
  3. Step 3: Cross multiply
    8,952.92x = 12,345.07 × 6,120.75
  4. Step 4: Simplify right side
    8,952.92x = 75,561,087.20
  5. Step 5: Solve for x
    x = 75,561,087.20/8,952.92
  6. Step 6: Final answer
    x = 8,439.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.