Home / 13,661.38-20,481.67-5,766.31

Finding the Fourth Proportional to 13,661.38, 20,481.67 and 5,766.31

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Solution

The fourth proportional to 13,661.38, 20,481.67 and 5,766.31 is: 8,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661.38 : 20,481.67 = 5,766.31 : x
  2. Step 2: Convert to fraction form
    13,661.38/20,481.67 = 5,766.31/x
  3. Step 3: Cross multiply
    13,661.38x = 20,481.67 × 5,766.31
  4. Step 4: Simplify right side
    13,661.38x = 118,103,658.54
  5. Step 5: Solve for x
    x = 118,103,658.54/13,661.38
  6. Step 6: Final answer
    x = 8,645.08

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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.