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Finding the Third Proportional to 9,001.50 and 18,916.50

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Solution

The third proportional to 9,001.50 and 18,916.50 is: 39,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.50 : 18,916.50 = 18,916.50 : x
  2. Step 2: Convert to fraction form
    9,001.50/18,916.50 = 18,916.50/x
  3. Step 3: Cross multiply
    9,001.50x = 18,916.50 × 18,916.50
  4. Step 4: Simplify right side
    9,001.50x = 357,833,972.25
  5. Step 5: Solve for x
    x = 357,833,972.25/9,001.50
  6. Step 6: Final answer
    x = 39,752.70

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.