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Finding the Fourth Proportional to 14.96, 20.62 and 10.85

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Solution

The fourth proportional to 14.96, 20.62 and 10.85 is: 14.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.96 : 20.62 = 10.85 : x
  2. Step 2: Convert to fraction form
    14.96/20.62 = 10.85/x
  3. Step 3: Cross multiply
    14.96x = 20.62 × 10.85
  4. Step 4: Simplify right side
    14.96x = 223.75
  5. Step 5: Solve for x
    x = 223.75/14.96
  6. Step 6: Final answer
    x = 14.95

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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.