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Finding the Third Proportional to 10,678 and 14,975

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Solution

The third proportional to 10,678 and 14,975 is: 21,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678 : 14,975 = 14,975 : x
  2. Step 2: Convert to fraction form
    10,678/14,975 = 14,975/x
  3. Step 3: Cross multiply
    10,678x = 14,975 × 14,975
  4. Step 4: Simplify right side
    10,678x = 224,250,625
  5. Step 5: Solve for x
    x = 224,250,625/10,678
  6. Step 6: Final answer
    x = 21,001.18

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.