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Finding the Third Proportional to 12,450 and 18,999

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Solution

The third proportional to 12,450 and 18,999 is: 28,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450 : 18,999 = 18,999 : x
  2. Step 2: Convert to fraction form
    12,450/18,999 = 18,999/x
  3. Step 3: Cross multiply
    12,450x = 18,999 × 18,999
  4. Step 4: Simplify right side
    12,450x = 360,962,001
  5. Step 5: Solve for x
    x = 360,962,001/12,450
  6. Step 6: Final answer
    x = 28,992.93

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.