Home / 8,278.03-12,418.58-2,731.76

Finding the Fourth Proportional to 8,278.03, 12,418.58 and 2,731.76

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Solution

The fourth proportional to 8,278.03, 12,418.58 and 2,731.76 is: 4,098.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.03 : 12,418.58 = 2,731.76 : x
  2. Step 2: Convert to fraction form
    8,278.03/12,418.58 = 2,731.76/x
  3. Step 3: Cross multiply
    8,278.03x = 12,418.58 × 2,731.76
  4. Step 4: Simplify right side
    8,278.03x = 33,924,566.44
  5. Step 5: Solve for x
    x = 33,924,566.44/8,278.03
  6. Step 6: Final answer
    x = 4,098.14

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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.