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Finding the Third Proportional to 8,858 and 18,997

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Solution

The third proportional to 8,858 and 18,997 is: 40,741.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858 : 18,997 = 18,997 : x
  2. Step 2: Convert to fraction form
    8,858/18,997 = 18,997/x
  3. Step 3: Cross multiply
    8,858x = 18,997 × 18,997
  4. Step 4: Simplify right side
    8,858x = 360,886,009
  5. Step 5: Solve for x
    x = 360,886,009/8,858
  6. Step 6: Final answer
    x = 40,741.25

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.