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Finding the Third Proportional to 8,212 and 8,914

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Solution

The third proportional to 8,212 and 8,914 is: 9,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212 : 8,914 = 8,914 : x
  2. Step 2: Convert to fraction form
    8,212/8,914 = 8,914/x
  3. Step 3: Cross multiply
    8,212x = 8,914 × 8,914
  4. Step 4: Simplify right side
    8,212x = 79,459,396
  5. Step 5: Solve for x
    x = 79,459,396/8,212
  6. Step 6: Final answer
    x = 9,676.01

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.