Home / 18,979.97-26,190.42-11,023.88

Finding the Fourth Proportional to 18,979.97, 26,190.42 and 11,023.88

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Solution

The fourth proportional to 18,979.97, 26,190.42 and 11,023.88 is: 15,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.97 : 26,190.42 = 11,023.88 : x
  2. Step 2: Convert to fraction form
    18,979.97/26,190.42 = 11,023.88/x
  3. Step 3: Cross multiply
    18,979.97x = 26,190.42 × 11,023.88
  4. Step 4: Simplify right side
    18,979.97x = 288,720,047.23
  5. Step 5: Solve for x
    x = 288,720,047.23/18,979.97
  6. Step 6: Final answer
    x = 15,211.83

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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.