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Finding the Third Proportional to 9,858 and 15,285

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Solution

The third proportional to 9,858 and 15,285 is: 23,699.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,858 : 15,285 = 15,285 : x
  2. Step 2: Convert to fraction form
    9,858/15,285 = 15,285/x
  3. Step 3: Cross multiply
    9,858x = 15,285 × 15,285
  4. Step 4: Simplify right side
    9,858x = 233,631,225
  5. Step 5: Solve for x
    x = 233,631,225/9,858
  6. Step 6: Final answer
    x = 23,699.66

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.