Home / 18,131.72-27,175.71-9,361.85

Finding the Fourth Proportional to 18,131.72, 27,175.71 and 9,361.85

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Solution

The fourth proportional to 18,131.72, 27,175.71 and 9,361.85 is: 14,031.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.72 : 27,175.71 = 9,361.85 : x
  2. Step 2: Convert to fraction form
    18,131.72/27,175.71 = 9,361.85/x
  3. Step 3: Cross multiply
    18,131.72x = 27,175.71 × 9,361.85
  4. Step 4: Simplify right side
    18,131.72x = 254,414,920.66
  5. Step 5: Solve for x
    x = 254,414,920.66/18,131.72
  6. Step 6: Final answer
    x = 14,031.48

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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.