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Finding the Third Proportional to 8,611.31 and 18,837.25

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Solution

The third proportional to 8,611.31 and 18,837.25 is: 41,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.31 : 18,837.25 = 18,837.25 : x
  2. Step 2: Convert to fraction form
    8,611.31/18,837.25 = 18,837.25/x
  3. Step 3: Cross multiply
    8,611.31x = 18,837.25 × 18,837.25
  4. Step 4: Simplify right side
    8,611.31x = 354,841,840.40
  5. Step 5: Solve for x
    x = 354,841,840.40/8,611.31
  6. Step 6: Final answer
    x = 41,206.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.