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Finding the Third Proportional to 4,008 and 8,608.50

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Solution

The third proportional to 4,008 and 8,608.50 is: 18,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,008 : 8,608.50 = 8,608.50 : x
  2. Step 2: Convert to fraction form
    4,008/8,608.50 = 8,608.50/x
  3. Step 3: Cross multiply
    4,008x = 8,608.50 × 8,608.50
  4. Step 4: Simplify right side
    4,008x = 74,106,272.25
  5. Step 5: Solve for x
    x = 74,106,272.25/4,008
  6. Step 6: Final answer
    x = 18,489.59

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.