Home / 11,489.20-17,231.67-3,168.13

Finding the Fourth Proportional to 11,489.20, 17,231.67 and 3,168.13

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Solution

The fourth proportional to 11,489.20, 17,231.67 and 3,168.13 is: 4,751.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.20 : 17,231.67 = 3,168.13 : x
  2. Step 2: Convert to fraction form
    11,489.20/17,231.67 = 3,168.13/x
  3. Step 3: Cross multiply
    11,489.20x = 17,231.67 × 3,168.13
  4. Step 4: Simplify right side
    11,489.20x = 54,592,170.68
  5. Step 5: Solve for x
    x = 54,592,170.68/11,489.20
  6. Step 6: Final answer
    x = 4,751.61

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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.