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Finding the Third Proportional to 6,815 and 8,818

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Solution

The third proportional to 6,815 and 8,818 is: 11,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815 : 8,818 = 8,818 : x
  2. Step 2: Convert to fraction form
    6,815/8,818 = 8,818/x
  3. Step 3: Cross multiply
    6,815x = 8,818 × 8,818
  4. Step 4: Simplify right side
    6,815x = 77,757,124
  5. Step 5: Solve for x
    x = 77,757,124/6,815
  6. Step 6: Final answer
    x = 11,409.70

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.