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Finding the Third Proportional to 9,969 and 14,489.50

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Solution

The third proportional to 9,969 and 14,489.50 is: 21,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969 : 14,489.50 = 14,489.50 : x
  2. Step 2: Convert to fraction form
    9,969/14,489.50 = 14,489.50/x
  3. Step 3: Cross multiply
    9,969x = 14,489.50 × 14,489.50
  4. Step 4: Simplify right side
    9,969x = 209,945,610.25
  5. Step 5: Solve for x
    x = 209,945,610.25/9,969
  6. Step 6: Final answer
    x = 21,059.85

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.