Home / 17,105.67-25,650.29-8,781.39

Finding the Fourth Proportional to 17,105.67, 25,650.29 and 8,781.39

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Solution

The fourth proportional to 17,105.67, 25,650.29 and 8,781.39 is: 13,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,105.67 : 25,650.29 = 8,781.39 : x
  2. Step 2: Convert to fraction form
    17,105.67/25,650.29 = 8,781.39/x
  3. Step 3: Cross multiply
    17,105.67x = 25,650.29 × 8,781.39
  4. Step 4: Simplify right side
    17,105.67x = 225,245,156.20
  5. Step 5: Solve for x
    x = 225,245,156.20/17,105.67
  6. Step 6: Final answer
    x = 13,167.87

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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.