Home / 7,747.68-11,621.16-3,133.92

Finding the Fourth Proportional to 7,747.68, 11,621.16 and 3,133.92

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Solution

The fourth proportional to 7,747.68, 11,621.16 and 3,133.92 is: 4,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.68 : 11,621.16 = 3,133.92 : x
  2. Step 2: Convert to fraction form
    7,747.68/11,621.16 = 3,133.92/x
  3. Step 3: Cross multiply
    7,747.68x = 11,621.16 × 3,133.92
  4. Step 4: Simplify right side
    7,747.68x = 36,419,785.75
  5. Step 5: Solve for x
    x = 36,419,785.75/7,747.68
  6. Step 6: Final answer
    x = 4,700.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.