Home / 8,122.55-12,184.43-2,279.61

Finding the Fourth Proportional to 8,122.55, 12,184.43 and 2,279.61

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Solution

The fourth proportional to 8,122.55, 12,184.43 and 2,279.61 is: 3,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.55 : 12,184.43 = 2,279.61 : x
  2. Step 2: Convert to fraction form
    8,122.55/12,184.43 = 2,279.61/x
  3. Step 3: Cross multiply
    8,122.55x = 12,184.43 × 2,279.61
  4. Step 4: Simplify right side
    8,122.55x = 27,775,737.07
  5. Step 5: Solve for x
    x = 27,775,737.07/8,122.55
  6. Step 6: Final answer
    x = 3,419.59

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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.