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Finding the Third Proportional to 10,668 and 16,878

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Solution

The third proportional to 10,668 and 16,878 is: 26,702.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668 : 16,878 = 16,878 : x
  2. Step 2: Convert to fraction form
    10,668/16,878 = 16,878/x
  3. Step 3: Cross multiply
    10,668x = 16,878 × 16,878
  4. Step 4: Simplify right side
    10,668x = 284,866,884
  5. Step 5: Solve for x
    x = 284,866,884/10,668
  6. Step 6: Final answer
    x = 26,702.93

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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.