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Finding the Third Proportional to 9,860 and 21,283

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Solution

The third proportional to 9,860 and 21,283 is: 45,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860 : 21,283 = 21,283 : x
  2. Step 2: Convert to fraction form
    9,860/21,283 = 21,283/x
  3. Step 3: Cross multiply
    9,860x = 21,283 × 21,283
  4. Step 4: Simplify right side
    9,860x = 452,966,089
  5. Step 5: Solve for x
    x = 452,966,089/9,860
  6. Step 6: Final answer
    x = 45,939.77

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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.