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Finding the Third Proportional to 7,286 and 8,888

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Solution

The third proportional to 7,286 and 8,888 is: 10,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286 : 8,888 = 8,888 : x
  2. Step 2: Convert to fraction form
    7,286/8,888 = 8,888/x
  3. Step 3: Cross multiply
    7,286x = 8,888 × 8,888
  4. Step 4: Simplify right side
    7,286x = 78,996,544
  5. Step 5: Solve for x
    x = 78,996,544/7,286
  6. Step 6: Final answer
    x = 10,842.24

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.