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Finding the Third Proportional to 7,778 and 8,834

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Solution

The third proportional to 7,778 and 8,834 is: 10,033.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778 : 8,834 = 8,834 : x
  2. Step 2: Convert to fraction form
    7,778/8,834 = 8,834/x
  3. Step 3: Cross multiply
    7,778x = 8,834 × 8,834
  4. Step 4: Simplify right side
    7,778x = 78,039,556
  5. Step 5: Solve for x
    x = 78,039,556/7,778
  6. Step 6: Final answer
    x = 10,033.37

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.