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Finding the Fourth Proportional to 18.19, 27.27 and 8.02

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Solution

The fourth proportional to 18.19, 27.27 and 8.02 is: 12.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.19 : 27.27 = 8.02 : x
  2. Step 2: Convert to fraction form
    18.19/27.27 = 8.02/x
  3. Step 3: Cross multiply
    18.19x = 27.27 × 8.02
  4. Step 4: Simplify right side
    18.19x = 218.85
  5. Step 5: Solve for x
    x = 218.85/18.19
  6. Step 6: Final answer
    x = 12.03

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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.