Home / 8,247.24-12,391.14-5,286.96

Finding the Fourth Proportional to 8,247.24, 12,391.14 and 5,286.96

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Solution

The fourth proportional to 8,247.24, 12,391.14 and 5,286.96 is: 7,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.24 : 12,391.14 = 5,286.96 : x
  2. Step 2: Convert to fraction form
    8,247.24/12,391.14 = 5,286.96/x
  3. Step 3: Cross multiply
    8,247.24x = 12,391.14 × 5,286.96
  4. Step 4: Simplify right side
    8,247.24x = 65,511,461.53
  5. Step 5: Solve for x
    x = 65,511,461.53/8,247.24
  6. Step 6: Final answer
    x = 7,943.44

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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.