Home / 8,126.82-12,191.96-2,579.44

Finding the Fourth Proportional to 8,126.82, 12,191.96 and 2,579.44

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Solution

The fourth proportional to 8,126.82, 12,191.96 and 2,579.44 is: 3,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.82 : 12,191.96 = 2,579.44 : x
  2. Step 2: Convert to fraction form
    8,126.82/12,191.96 = 2,579.44/x
  3. Step 3: Cross multiply
    8,126.82x = 12,191.96 × 2,579.44
  4. Step 4: Simplify right side
    8,126.82x = 31,448,429.30
  5. Step 5: Solve for x
    x = 31,448,429.30/8,126.82
  6. Step 6: Final answer
    x = 3,869.71

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1.5x scale

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.