Home / 18,711.20-25,820.56-10,327.20

Finding the Fourth Proportional to 18,711.20, 25,820.56 and 10,327.20

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Solution

The fourth proportional to 18,711.20, 25,820.56 and 10,327.20 is: 14,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.20 : 25,820.56 = 10,327.20 : x
  2. Step 2: Convert to fraction form
    18,711.20/25,820.56 = 10,327.20/x
  3. Step 3: Cross multiply
    18,711.20x = 25,820.56 × 10,327.20
  4. Step 4: Simplify right side
    18,711.20x = 266,654,087.23
  5. Step 5: Solve for x
    x = 266,654,087.23/18,711.20
  6. Step 6: Final answer
    x = 14,251.04

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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.