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Finding the Fourth Proportional to 18,751.01, 25,879.19 and 10,791.68

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Solution

The fourth proportional to 18,751.01, 25,879.19 and 10,791.68 is: 14,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751.01 : 25,879.19 = 10,791.68 : x
  2. Step 2: Convert to fraction form
    18,751.01/25,879.19 = 10,791.68/x
  3. Step 3: Cross multiply
    18,751.01x = 25,879.19 × 10,791.68
  4. Step 4: Simplify right side
    18,751.01x = 279,279,753.78
  5. Step 5: Solve for x
    x = 279,279,753.78/18,751.01
  6. Step 6: Final answer
    x = 14,894.12

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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.