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Finding the Third Proportional to 7,350 and 12,891

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Solution

The third proportional to 7,350 and 12,891 is: 22,609.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350 : 12,891 = 12,891 : x
  2. Step 2: Convert to fraction form
    7,350/12,891 = 12,891/x
  3. Step 3: Cross multiply
    7,350x = 12,891 × 12,891
  4. Step 4: Simplify right side
    7,350x = 166,177,881
  5. Step 5: Solve for x
    x = 166,177,881/7,350
  6. Step 6: Final answer
    x = 22,609.24

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.