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Finding the Third Proportional to 7,706 and 11,491

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Solution

The third proportional to 7,706 and 11,491 is: 17,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,706 : 11,491 = 11,491 : x
  2. Step 2: Convert to fraction form
    7,706/11,491 = 11,491/x
  3. Step 3: Cross multiply
    7,706x = 11,491 × 11,491
  4. Step 4: Simplify right side
    7,706x = 132,043,081
  5. Step 5: Solve for x
    x = 132,043,081/7,706
  6. Step 6: Final answer
    x = 17,135.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.