Home / 18,249.22-25,179.61-11,078.95

Finding the Fourth Proportional to 18,249.22, 25,179.61 and 11,078.95

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Solution

The fourth proportional to 18,249.22, 25,179.61 and 11,078.95 is: 15,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.22 : 25,179.61 = 11,078.95 : x
  2. Step 2: Convert to fraction form
    18,249.22/25,179.61 = 11,078.95/x
  3. Step 3: Cross multiply
    18,249.22x = 25,179.61 × 11,078.95
  4. Step 4: Simplify right side
    18,249.22x = 278,963,640.21
  5. Step 5: Solve for x
    x = 278,963,640.21/18,249.22
  6. Step 6: Final answer
    x = 15,286.33

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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.