Home / 9,956.42-13,753.85-9,431.54

Finding the Fourth Proportional to 9,956.42, 13,753.85 and 9,431.54

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Solution

The fourth proportional to 9,956.42, 13,753.85 and 9,431.54 is: 13,028.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.42 : 13,753.85 = 9,431.54 : x
  2. Step 2: Convert to fraction form
    9,956.42/13,753.85 = 9,431.54/x
  3. Step 3: Cross multiply
    9,956.42x = 13,753.85 × 9,431.54
  4. Step 4: Simplify right side
    9,956.42x = 129,719,975.13
  5. Step 5: Solve for x
    x = 129,719,975.13/9,956.42
  6. Step 6: Final answer
    x = 13,028.78

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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.