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Finding the Third Proportional to 8,668 and 18,988

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Solution

The third proportional to 8,668 and 18,988 is: 41,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668 : 18,988 = 18,988 : x
  2. Step 2: Convert to fraction form
    8,668/18,988 = 18,988/x
  3. Step 3: Cross multiply
    8,668x = 18,988 × 18,988
  4. Step 4: Simplify right side
    8,668x = 360,544,144
  5. Step 5: Solve for x
    x = 360,544,144/8,668
  6. Step 6: Final answer
    x = 41,594.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.