Home / 13,481.75-20,222.67-4,121.73

Finding the Fourth Proportional to 13,481.75, 20,222.67 and 4,121.73

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Solution

The fourth proportional to 13,481.75, 20,222.67 and 4,121.73 is: 6,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.75 : 20,222.67 = 4,121.73 : x
  2. Step 2: Convert to fraction form
    13,481.75/20,222.67 = 4,121.73/x
  3. Step 3: Cross multiply
    13,481.75x = 20,222.67 × 4,121.73
  4. Step 4: Simplify right side
    13,481.75x = 83,352,385.62
  5. Step 5: Solve for x
    x = 83,352,385.62/13,481.75
  6. Step 6: Final answer
    x = 6,182.61

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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.