Home / 8,171.80-12,257.70-2,625.55

Finding the Fourth Proportional to 8,171.80, 12,257.70 and 2,625.55

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Solution

The fourth proportional to 8,171.80, 12,257.70 and 2,625.55 is: 3,938.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.80 : 12,257.70 = 2,625.55 : x
  2. Step 2: Convert to fraction form
    8,171.80/12,257.70 = 2,625.55/x
  3. Step 3: Cross multiply
    8,171.80x = 12,257.70 × 2,625.55
  4. Step 4: Simplify right side
    8,171.80x = 32,183,204.24
  5. Step 5: Solve for x
    x = 32,183,204.24/8,171.80
  6. Step 6: Final answer
    x = 3,938.33

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Double scale
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Similar ratio
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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.