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Finding the Third Proportional to 9,911 and 14,245

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Solution

The third proportional to 9,911 and 14,245 is: 20,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911 : 14,245 = 14,245 : x
  2. Step 2: Convert to fraction form
    9,911/14,245 = 14,245/x
  3. Step 3: Cross multiply
    9,911x = 14,245 × 14,245
  4. Step 4: Simplify right side
    9,911x = 202,920,025
  5. Step 5: Solve for x
    x = 202,920,025/9,911
  6. Step 6: Final answer
    x = 20,474.22

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.