Home / 11,189.49-16,780.79-3,691.66

Finding the Fourth Proportional to 11,189.49, 16,780.79 and 3,691.66

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Solution

The fourth proportional to 11,189.49, 16,780.79 and 3,691.66 is: 5,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.49 : 16,780.79 = 3,691.66 : x
  2. Step 2: Convert to fraction form
    11,189.49/16,780.79 = 3,691.66/x
  3. Step 3: Cross multiply
    11,189.49x = 16,780.79 × 3,691.66
  4. Step 4: Simplify right side
    11,189.49x = 61,948,969.95
  5. Step 5: Solve for x
    x = 61,948,969.95/11,189.49
  6. Step 6: Final answer
    x = 5,536.36

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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.