Home / 11,629.38-16,021.42-8,086.44

Finding the Fourth Proportional to 11,629.38, 16,021.42 and 8,086.44

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Solution

The fourth proportional to 11,629.38, 16,021.42 and 8,086.44 is: 11,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,629.38 : 16,021.42 = 8,086.44 : x
  2. Step 2: Convert to fraction form
    11,629.38/16,021.42 = 8,086.44/x
  3. Step 3: Cross multiply
    11,629.38x = 16,021.42 × 8,086.44
  4. Step 4: Simplify right side
    11,629.38x = 129,556,251.54
  5. Step 5: Solve for x
    x = 129,556,251.54/11,629.38
  6. Step 6: Final answer
    x = 11,140.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.