Home / 11,691.11-17,563.80-11,061.74

Finding the Fourth Proportional to 11,691.11, 17,563.80 and 11,061.74

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Solution

The fourth proportional to 11,691.11, 17,563.80 and 11,061.74 is: 16,618.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.11 : 17,563.80 = 11,061.74 : x
  2. Step 2: Convert to fraction form
    11,691.11/17,563.80 = 11,061.74/x
  3. Step 3: Cross multiply
    11,691.11x = 17,563.80 × 11,061.74
  4. Step 4: Simplify right side
    11,691.11x = 194,286,189.01
  5. Step 5: Solve for x
    x = 194,286,189.01/11,691.11
  6. Step 6: Final answer
    x = 16,618.28

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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.