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Finding the Third Proportional to 5,142.25 and 10,853.75

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Solution

The third proportional to 5,142.25 and 10,853.75 is: 22,909.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.25 : 10,853.75 = 10,853.75 : x
  2. Step 2: Convert to fraction form
    5,142.25/10,853.75 = 10,853.75/x
  3. Step 3: Cross multiply
    5,142.25x = 10,853.75 × 10,853.75
  4. Step 4: Simplify right side
    5,142.25x = 117,803,889.06
  5. Step 5: Solve for x
    x = 117,803,889.06/5,142.25
  6. Step 6: Final answer
    x = 22,909.02

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.