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Finding the Fourth Proportional to 18,144.58, 25,040.76 and 10,079.18

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Solution

The fourth proportional to 18,144.58, 25,040.76 and 10,079.18 is: 13,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.58 : 25,040.76 = 10,079.18 : x
  2. Step 2: Convert to fraction form
    18,144.58/25,040.76 = 10,079.18/x
  3. Step 3: Cross multiply
    18,144.58x = 25,040.76 × 10,079.18
  4. Step 4: Simplify right side
    18,144.58x = 252,390,151.78
  5. Step 5: Solve for x
    x = 252,390,151.78/18,144.58
  6. Step 6: Final answer
    x = 13,909.95

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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.