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Finding the Third Proportional to 12,200 and 18,852

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Solution

The third proportional to 12,200 and 18,852 is: 29,130.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200 : 18,852 = 18,852 : x
  2. Step 2: Convert to fraction form
    12,200/18,852 = 18,852/x
  3. Step 3: Cross multiply
    12,200x = 18,852 × 18,852
  4. Step 4: Simplify right side
    12,200x = 355,397,904
  5. Step 5: Solve for x
    x = 355,397,904/12,200
  6. Step 6: Final answer
    x = 29,130.98

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.