Home / 18,375.42-25,350.53-11,999.82

Finding the Fourth Proportional to 18,375.42, 25,350.53 and 11,999.82

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Solution

The fourth proportional to 18,375.42, 25,350.53 and 11,999.82 is: 16,554.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.42 : 25,350.53 = 11,999.82 : x
  2. Step 2: Convert to fraction form
    18,375.42/25,350.53 = 11,999.82/x
  3. Step 3: Cross multiply
    18,375.42x = 25,350.53 × 11,999.82
  4. Step 4: Simplify right side
    18,375.42x = 304,201,736.91
  5. Step 5: Solve for x
    x = 304,201,736.91/18,375.42
  6. Step 6: Final answer
    x = 16,554.82

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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.