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Finding the Third Proportional to 8,858.25 and 18,739.13

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Solution

The third proportional to 8,858.25 and 18,739.13 is: 39,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.25 : 18,739.13 = 18,739.13 : x
  2. Step 2: Convert to fraction form
    8,858.25/18,739.13 = 18,739.13/x
  3. Step 3: Cross multiply
    8,858.25x = 18,739.13 × 18,739.13
  4. Step 4: Simplify right side
    8,858.25x = 351,154,805.77
  5. Step 5: Solve for x
    x = 351,154,805.77/8,858.25
  6. Step 6: Final answer
    x = 39,641.56

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.