Home / 12,481.22-18,725.39-4,166.69

Finding the Fourth Proportional to 12,481.22, 18,725.39 and 4,166.69

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Solution

The fourth proportional to 12,481.22, 18,725.39 and 4,166.69 is: 6,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.22 : 18,725.39 = 4,166.69 : x
  2. Step 2: Convert to fraction form
    12,481.22/18,725.39 = 4,166.69/x
  3. Step 3: Cross multiply
    12,481.22x = 18,725.39 × 4,166.69
  4. Step 4: Simplify right side
    12,481.22x = 78,022,796.42
  5. Step 5: Solve for x
    x = 78,022,796.42/12,481.22
  6. Step 6: Final answer
    x = 6,251.21

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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.