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Finding the Third Proportional to 10.72 and 16.93

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Solution

The third proportional to 10.72 and 16.93 is: 26.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.72 : 16.93 = 16.93 : x
  2. Step 2: Convert to fraction form
    10.72/16.93 = 16.93/x
  3. Step 3: Cross multiply
    10.72x = 16.93 × 16.93
  4. Step 4: Simplify right side
    10.72x = 286.68
  5. Step 5: Solve for x
    x = 286.68/10.72
  6. Step 6: Final answer
    x = 26.75

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.