Home / 11,381.26-15,704.12-8,399.66

Finding the Fourth Proportional to 11,381.26, 15,704.12 and 8,399.66

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Solution

The fourth proportional to 11,381.26, 15,704.12 and 8,399.66 is: 11,590.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.26 : 15,704.12 = 8,399.66 : x
  2. Step 2: Convert to fraction form
    11,381.26/15,704.12 = 8,399.66/x
  3. Step 3: Cross multiply
    11,381.26x = 15,704.12 × 8,399.66
  4. Step 4: Simplify right side
    11,381.26x = 131,909,268.60
  5. Step 5: Solve for x
    x = 131,909,268.60/11,381.26
  6. Step 6: Final answer
    x = 11,590.04

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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.