Home / 7,660.27-11,478.41-5,324.81

Finding the Fourth Proportional to 7,660.27, 11,478.41 and 5,324.81

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Solution

The fourth proportional to 7,660.27, 11,478.41 and 5,324.81 is: 7,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.27 : 11,478.41 = 5,324.81 : x
  2. Step 2: Convert to fraction form
    7,660.27/11,478.41 = 5,324.81/x
  3. Step 3: Cross multiply
    7,660.27x = 11,478.41 × 5,324.81
  4. Step 4: Simplify right side
    7,660.27x = 61,120,385.15
  5. Step 5: Solve for x
    x = 61,120,385.15/7,660.27
  6. Step 6: Final answer
    x = 7,978.88

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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.