Home / 11,517.98-17,177.79-11,310.62

Finding the Fourth Proportional to 11,517.98, 17,177.79 and 11,310.62

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Solution

The fourth proportional to 11,517.98, 17,177.79 and 11,310.62 is: 16,868.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.98 : 17,177.79 = 11,310.62 : x
  2. Step 2: Convert to fraction form
    11,517.98/17,177.79 = 11,310.62/x
  3. Step 3: Cross multiply
    11,517.98x = 17,177.79 × 11,310.62
  4. Step 4: Simplify right side
    11,517.98x = 194,291,398.58
  5. Step 5: Solve for x
    x = 194,291,398.58/11,517.98
  6. Step 6: Final answer
    x = 16,868.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.