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Finding the Third Proportional to 7,647 and 10,769

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Solution

The third proportional to 7,647 and 10,769 is: 15,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647 : 10,769 = 10,769 : x
  2. Step 2: Convert to fraction form
    7,647/10,769 = 10,769/x
  3. Step 3: Cross multiply
    7,647x = 10,769 × 10,769
  4. Step 4: Simplify right side
    7,647x = 115,971,361
  5. Step 5: Solve for x
    x = 115,971,361/7,647
  6. Step 6: Final answer
    x = 15,165.60

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.