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Finding the Fourth Proportional to 8,580.92, 12,873.17 and 2,959.09

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Solution

The fourth proportional to 8,580.92, 12,873.17 and 2,959.09 is: 4,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.92 : 12,873.17 = 2,959.09 : x
  2. Step 2: Convert to fraction form
    8,580.92/12,873.17 = 2,959.09/x
  3. Step 3: Cross multiply
    8,580.92x = 12,873.17 × 2,959.09
  4. Step 4: Simplify right side
    8,580.92x = 38,092,843.83
  5. Step 5: Solve for x
    x = 38,092,843.83/8,580.92
  6. Step 6: Final answer
    x = 4,439.25

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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.