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Finding the Third Proportional to 10,218 and 15,625

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Solution

The third proportional to 10,218 and 15,625 is: 23,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218 : 15,625 = 15,625 : x
  2. Step 2: Convert to fraction form
    10,218/15,625 = 15,625/x
  3. Step 3: Cross multiply
    10,218x = 15,625 × 15,625
  4. Step 4: Simplify right side
    10,218x = 244,140,625
  5. Step 5: Solve for x
    x = 244,140,625/10,218
  6. Step 6: Final answer
    x = 23,893.19

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.