Home / 8,821.18-13,231.78-2,247.90

Finding the Fourth Proportional to 8,821.18, 13,231.78 and 2,247.90

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Solution

The fourth proportional to 8,821.18, 13,231.78 and 2,247.90 is: 3,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.18 : 13,231.78 = 2,247.90 : x
  2. Step 2: Convert to fraction form
    8,821.18/13,231.78 = 2,247.90/x
  3. Step 3: Cross multiply
    8,821.18x = 13,231.78 × 2,247.90
  4. Step 4: Simplify right side
    8,821.18x = 29,743,718.26
  5. Step 5: Solve for x
    x = 29,743,718.26/8,821.18
  6. Step 6: Final answer
    x = 3,371.85

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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.