Home / 8,278.20-12,422.44-3,347.88

Finding the Fourth Proportional to 8,278.20, 12,422.44 and 3,347.88

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Solution

The fourth proportional to 8,278.20, 12,422.44 and 3,347.88 is: 5,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.20 : 12,422.44 = 3,347.88 : x
  2. Step 2: Convert to fraction form
    8,278.20/12,422.44 = 3,347.88/x
  3. Step 3: Cross multiply
    8,278.20x = 12,422.44 × 3,347.88
  4. Step 4: Simplify right side
    8,278.20x = 41,588,856.49
  5. Step 5: Solve for x
    x = 41,588,856.49/8,278.20
  6. Step 6: Final answer
    x = 5,023.90

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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.