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Finding the Third Proportional to 8,670.75 and 18,707.25

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Solution

The third proportional to 8,670.75 and 18,707.25 is: 40,361.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.75 : 18,707.25 = 18,707.25 : x
  2. Step 2: Convert to fraction form
    8,670.75/18,707.25 = 18,707.25/x
  3. Step 3: Cross multiply
    8,670.75x = 18,707.25 × 18,707.25
  4. Step 4: Simplify right side
    8,670.75x = 349,961,202.56
  5. Step 5: Solve for x
    x = 349,961,202.56/8,670.75
  6. Step 6: Final answer
    x = 40,361.12

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.