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Finding the Third Proportional to 5,181.75 and 8,242.88

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Solution

The third proportional to 5,181.75 and 8,242.88 is: 13,112.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.75 : 8,242.88 = 8,242.88 : x
  2. Step 2: Convert to fraction form
    5,181.75/8,242.88 = 8,242.88/x
  3. Step 3: Cross multiply
    5,181.75x = 8,242.88 × 8,242.88
  4. Step 4: Simplify right side
    5,181.75x = 67,944,988.27
  5. Step 5: Solve for x
    x = 67,944,988.27/5,181.75
  6. Step 6: Final answer
    x = 13,112.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.