Home / 11,922.97-17,884.47-4,131.79

Finding the Fourth Proportional to 11,922.97, 17,884.47 and 4,131.79

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Solution

The fourth proportional to 11,922.97, 17,884.47 and 4,131.79 is: 6,197.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.97 : 17,884.47 = 4,131.79 : x
  2. Step 2: Convert to fraction form
    11,922.97/17,884.47 = 4,131.79/x
  3. Step 3: Cross multiply
    11,922.97x = 17,884.47 × 4,131.79
  4. Step 4: Simplify right side
    11,922.97x = 73,894,874.30
  5. Step 5: Solve for x
    x = 73,894,874.30/11,922.97
  6. Step 6: Final answer
    x = 6,197.69

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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.