Home / 16,781.22-25,175.88-11,860.47

Finding the Fourth Proportional to 16,781.22, 25,175.88 and 11,860.47

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Solution

The fourth proportional to 16,781.22, 25,175.88 and 11,860.47 is: 17,793.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.22 : 25,175.88 = 11,860.47 : x
  2. Step 2: Convert to fraction form
    16,781.22/25,175.88 = 11,860.47/x
  3. Step 3: Cross multiply
    16,781.22x = 25,175.88 × 11,860.47
  4. Step 4: Simplify right side
    16,781.22x = 298,597,769.46
  5. Step 5: Solve for x
    x = 298,597,769.46/16,781.22
  6. Step 6: Final answer
    x = 17,793.57

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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.