Home / 18,943.10-26,144.55-11,397.05

Finding the Fourth Proportional to 18,943.10, 26,144.55 and 11,397.05

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Solution

The fourth proportional to 18,943.10, 26,144.55 and 11,397.05 is: 15,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.10 : 26,144.55 = 11,397.05 : x
  2. Step 2: Convert to fraction form
    18,943.10/26,144.55 = 11,397.05/x
  3. Step 3: Cross multiply
    18,943.10x = 26,144.55 × 11,397.05
  4. Step 4: Simplify right side
    18,943.10x = 297,970,743.58
  5. Step 5: Solve for x
    x = 297,970,743.58/18,943.10
  6. Step 6: Final answer
    x = 15,729.78

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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.