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Finding the Third Proportional to 4,066.88 and 8,879.63

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Solution

The third proportional to 4,066.88 and 8,879.63 is: 19,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,066.88 : 8,879.63 = 8,879.63 : x
  2. Step 2: Convert to fraction form
    4,066.88/8,879.63 = 8,879.63/x
  3. Step 3: Cross multiply
    4,066.88x = 8,879.63 × 8,879.63
  4. Step 4: Simplify right side
    4,066.88x = 78,847,740.14
  5. Step 5: Solve for x
    x = 78,847,740.14/4,066.88
  6. Step 6: Final answer
    x = 19,387.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.