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Finding the Third Proportional to 5,405.91 and 11,080.13

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Solution

The third proportional to 5,405.91 and 11,080.13 is: 22,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.91 : 11,080.13 = 11,080.13 : x
  2. Step 2: Convert to fraction form
    5,405.91/11,080.13 = 11,080.13/x
  3. Step 3: Cross multiply
    5,405.91x = 11,080.13 × 11,080.13
  4. Step 4: Simplify right side
    5,405.91x = 122,769,170.02
  5. Step 5: Solve for x
    x = 122,769,170.02/5,405.91
  6. Step 6: Final answer
    x = 22,710.19

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.