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Finding the Third Proportional to 9,817.13 and 21,213.38

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Solution

The third proportional to 9,817.13 and 21,213.38 is: 45,839.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,817.13 : 21,213.38 = 21,213.38 : x
  2. Step 2: Convert to fraction form
    9,817.13/21,213.38 = 21,213.38/x
  3. Step 3: Cross multiply
    9,817.13x = 21,213.38 × 21,213.38
  4. Step 4: Simplify right side
    9,817.13x = 450,007,278.89
  5. Step 5: Solve for x
    x = 450,007,278.89/9,817.13
  6. Step 6: Final answer
    x = 45,839.01

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.