Home / 8,175.12-12,269.97-5,579.88

Finding the Fourth Proportional to 8,175.12, 12,269.97 and 5,579.88

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Solution

The fourth proportional to 8,175.12, 12,269.97 and 5,579.88 is: 8,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,175.12 : 12,269.97 = 5,579.88 : x
  2. Step 2: Convert to fraction form
    8,175.12/12,269.97 = 5,579.88/x
  3. Step 3: Cross multiply
    8,175.12x = 12,269.97 × 5,579.88
  4. Step 4: Simplify right side
    8,175.12x = 68,464,870.95
  5. Step 5: Solve for x
    x = 68,464,870.95/8,175.12
  6. Step 6: Final answer
    x = 8,374.79

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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.