Home / 13,727.38-18,944.13-8,425.12

Finding the Fourth Proportional to 13,727.38, 18,944.13 and 8,425.12

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Solution

The fourth proportional to 13,727.38, 18,944.13 and 8,425.12 is: 11,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.38 : 18,944.13 = 8,425.12 : x
  2. Step 2: Convert to fraction form
    13,727.38/18,944.13 = 8,425.12/x
  3. Step 3: Cross multiply
    13,727.38x = 18,944.13 × 8,425.12
  4. Step 4: Simplify right side
    13,727.38x = 159,606,568.55
  5. Step 5: Solve for x
    x = 159,606,568.55/13,727.38
  6. Step 6: Final answer
    x = 11,626.88

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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.