Home / 17,581.28-26,380.62-8,221.96

Finding the Fourth Proportional to 17,581.28, 26,380.62 and 8,221.96

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Solution

The fourth proportional to 17,581.28, 26,380.62 and 8,221.96 is: 12,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,581.28 : 26,380.62 = 8,221.96 : x
  2. Step 2: Convert to fraction form
    17,581.28/26,380.62 = 8,221.96/x
  3. Step 3: Cross multiply
    17,581.28x = 26,380.62 × 8,221.96
  4. Step 4: Simplify right side
    17,581.28x = 216,900,402.42
  5. Step 5: Solve for x
    x = 216,900,402.42/17,581.28
  6. Step 6: Final answer
    x = 12,337.01

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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.