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Finding the Third Proportional to 7,761 and 11,088

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Solution

The third proportional to 7,761 and 11,088 is: 15,841.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761 : 11,088 = 11,088 : x
  2. Step 2: Convert to fraction form
    7,761/11,088 = 11,088/x
  3. Step 3: Cross multiply
    7,761x = 11,088 × 11,088
  4. Step 4: Simplify right side
    7,761x = 122,943,744
  5. Step 5: Solve for x
    x = 122,943,744/7,761
  6. Step 6: Final answer
    x = 15,841.22

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.