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Finding the Fourth Proportional to 18.26, 27.33 and 10.65

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Solution

The fourth proportional to 18.26, 27.33 and 10.65 is: 15.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.26 : 27.33 = 10.65 : x
  2. Step 2: Convert to fraction form
    18.26/27.33 = 10.65/x
  3. Step 3: Cross multiply
    18.26x = 27.33 × 10.65
  4. Step 4: Simplify right side
    18.26x = 291.06
  5. Step 5: Solve for x
    x = 291.06/18.26
  6. Step 6: Final answer
    x = 15.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.