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Finding the Third Proportional to 6,699 and 8,688

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Solution

The third proportional to 6,699 and 8,688 is: 11,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699 : 8,688 = 8,688 : x
  2. Step 2: Convert to fraction form
    6,699/8,688 = 8,688/x
  3. Step 3: Cross multiply
    6,699x = 8,688 × 8,688
  4. Step 4: Simplify right side
    6,699x = 75,481,344
  5. Step 5: Solve for x
    x = 75,481,344/6,699
  6. Step 6: Final answer
    x = 11,267.55

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These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.