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Finding the Fourth Proportional to 12.50, 17.32 and 11.94

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Solution

The fourth proportional to 12.50, 17.32 and 11.94 is: 16.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12.50 : 17.32 = 11.94 : x
  2. Step 2: Convert to fraction form
    12.50/17.32 = 11.94/x
  3. Step 3: Cross multiply
    12.50x = 17.32 × 11.94
  4. Step 4: Simplify right side
    12.50x = 206.80
  5. Step 5: Solve for x
    x = 206.80/12.50
  6. Step 6: Final answer
    x = 16.54

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.