Home / 18,522.38-25,560.60-10,138.88

Finding the Fourth Proportional to 18,522.38, 25,560.60 and 10,138.88

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Solution

The fourth proportional to 18,522.38, 25,560.60 and 10,138.88 is: 13,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.38 : 25,560.60 = 10,138.88 : x
  2. Step 2: Convert to fraction form
    18,522.38/25,560.60 = 10,138.88/x
  3. Step 3: Cross multiply
    18,522.38x = 25,560.60 × 10,138.88
  4. Step 4: Simplify right side
    18,522.38x = 259,155,856.13
  5. Step 5: Solve for x
    x = 259,155,856.13/18,522.38
  6. Step 6: Final answer
    x = 13,991.50

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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.