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Finding the Third Proportional to 11,757 and 18,901.50

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Solution

The third proportional to 11,757 and 18,901.50 is: 30,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,757 : 18,901.50 = 18,901.50 : x
  2. Step 2: Convert to fraction form
    11,757/18,901.50 = 18,901.50/x
  3. Step 3: Cross multiply
    11,757x = 18,901.50 × 18,901.50
  4. Step 4: Simplify right side
    11,757x = 357,266,702.25
  5. Step 5: Solve for x
    x = 357,266,702.25/11,757
  6. Step 6: Final answer
    x = 30,387.57

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.