Home / 8,419.92-12,631.76-2,873.04

Finding the Fourth Proportional to 8,419.92, 12,631.76 and 2,873.04

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Solution

The fourth proportional to 8,419.92, 12,631.76 and 2,873.04 is: 4,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.92 : 12,631.76 = 2,873.04 : x
  2. Step 2: Convert to fraction form
    8,419.92/12,631.76 = 2,873.04/x
  3. Step 3: Cross multiply
    8,419.92x = 12,631.76 × 2,873.04
  4. Step 4: Simplify right side
    8,419.92x = 36,291,551.75
  5. Step 5: Solve for x
    x = 36,291,551.75/8,419.92
  6. Step 6: Final answer
    x = 4,310.20

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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.