Home / 12,112.44-18,170.49-3,791.52

Finding the Fourth Proportional to 12,112.44, 18,170.49 and 3,791.52

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Solution

The fourth proportional to 12,112.44, 18,170.49 and 3,791.52 is: 5,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.44 : 18,170.49 = 3,791.52 : x
  2. Step 2: Convert to fraction form
    12,112.44/18,170.49 = 3,791.52/x
  3. Step 3: Cross multiply
    12,112.44x = 18,170.49 × 3,791.52
  4. Step 4: Simplify right side
    12,112.44x = 68,893,776.24
  5. Step 5: Solve for x
    x = 68,893,776.24/12,112.44
  6. Step 6: Final answer
    x = 5,687.85

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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.