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Finding the Fourth Proportional to 18,266.82, 27,380.18 and 11,933.88

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Solution

The fourth proportional to 18,266.82, 27,380.18 and 11,933.88 is: 17,887.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.82 : 27,380.18 = 11,933.88 : x
  2. Step 2: Convert to fraction form
    18,266.82/27,380.18 = 11,933.88/x
  3. Step 3: Cross multiply
    18,266.82x = 27,380.18 × 11,933.88
  4. Step 4: Simplify right side
    18,266.82x = 326,751,796.54
  5. Step 5: Solve for x
    x = 326,751,796.54/18,266.82
  6. Step 6: Final answer
    x = 17,887.73

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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.