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Finding the Third Proportional to 10,908 and 16,929

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Solution

The third proportional to 10,908 and 16,929 is: 26,273.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908 : 16,929 = 16,929 : x
  2. Step 2: Convert to fraction form
    10,908/16,929 = 16,929/x
  3. Step 3: Cross multiply
    10,908x = 16,929 × 16,929
  4. Step 4: Simplify right side
    10,908x = 286,591,041
  5. Step 5: Solve for x
    x = 286,591,041/10,908
  6. Step 6: Final answer
    x = 26,273.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.