Home / 18,177.67-25,087.08-11,108.80

Finding the Fourth Proportional to 18,177.67, 25,087.08 and 11,108.80

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Solution

The fourth proportional to 18,177.67, 25,087.08 and 11,108.80 is: 15,331.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,177.67 : 25,087.08 = 11,108.80 : x
  2. Step 2: Convert to fraction form
    18,177.67/25,087.08 = 11,108.80/x
  3. Step 3: Cross multiply
    18,177.67x = 25,087.08 × 11,108.80
  4. Step 4: Simplify right side
    18,177.67x = 278,687,354.30
  5. Step 5: Solve for x
    x = 278,687,354.30/18,177.67
  6. Step 6: Final answer
    x = 15,331.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.