Home / 8,140.33-12,211.39-2,591.73

Finding the Fourth Proportional to 8,140.33, 12,211.39 and 2,591.73

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Solution

The fourth proportional to 8,140.33, 12,211.39 and 2,591.73 is: 3,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.33 : 12,211.39 = 2,591.73 : x
  2. Step 2: Convert to fraction form
    8,140.33/12,211.39 = 2,591.73/x
  3. Step 3: Cross multiply
    8,140.33x = 12,211.39 × 2,591.73
  4. Step 4: Simplify right side
    8,140.33x = 31,648,625.80
  5. Step 5: Solve for x
    x = 31,648,625.80/8,140.33
  6. Step 6: Final answer
    x = 3,887.88

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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.