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Finding the Third Proportional to 9,119 and 11,974

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Solution

The third proportional to 9,119 and 11,974 is: 15,722.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119 : 11,974 = 11,974 : x
  2. Step 2: Convert to fraction form
    9,119/11,974 = 11,974/x
  3. Step 3: Cross multiply
    9,119x = 11,974 × 11,974
  4. Step 4: Simplify right side
    9,119x = 143,376,676
  5. Step 5: Solve for x
    x = 143,376,676/9,119
  6. Step 6: Final answer
    x = 15,722.85

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.