Home / 9,318.72-12,873.96-6,956.76

Finding the Fourth Proportional to 9,318.72, 12,873.96 and 6,956.76

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Solution

The fourth proportional to 9,318.72, 12,873.96 and 6,956.76 is: 9,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.72 : 12,873.96 = 6,956.76 : x
  2. Step 2: Convert to fraction form
    9,318.72/12,873.96 = 6,956.76/x
  3. Step 3: Cross multiply
    9,318.72x = 12,873.96 × 6,956.76
  4. Step 4: Simplify right side
    9,318.72x = 89,561,049.97
  5. Step 5: Solve for x
    x = 89,561,049.97/9,318.72
  6. Step 6: Final answer
    x = 9,610.87

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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.