Home / 8,072.74-12,116.40-4,179.88

Finding the Fourth Proportional to 8,072.74, 12,116.40 and 4,179.88

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Solution

The fourth proportional to 8,072.74, 12,116.40 and 4,179.88 is: 6,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.74 : 12,116.40 = 4,179.88 : x
  2. Step 2: Convert to fraction form
    8,072.74/12,116.40 = 4,179.88/x
  3. Step 3: Cross multiply
    8,072.74x = 12,116.40 × 4,179.88
  4. Step 4: Simplify right side
    8,072.74x = 50,645,098.03
  5. Step 5: Solve for x
    x = 50,645,098.03/8,072.74
  6. Step 6: Final answer
    x = 6,273.59

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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.