Home / 8,258.92-12,378.65-3,321.97

Finding the Fourth Proportional to 8,258.92, 12,378.65 and 3,321.97

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Solution

The fourth proportional to 8,258.92, 12,378.65 and 3,321.97 is: 4,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.92 : 12,378.65 = 3,321.97 : x
  2. Step 2: Convert to fraction form
    8,258.92/12,378.65 = 3,321.97/x
  3. Step 3: Cross multiply
    8,258.92x = 12,378.65 × 3,321.97
  4. Step 4: Simplify right side
    8,258.92x = 41,121,456.38
  5. Step 5: Solve for x
    x = 41,121,456.38/8,258.92
  6. Step 6: Final answer
    x = 4,979.04

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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.