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Finding the Third Proportional to 6,399 and 9,954

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Solution

The third proportional to 6,399 and 9,954 is: 15,484

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399 : 9,954 = 9,954 : x
  2. Step 2: Convert to fraction form
    6,399/9,954 = 9,954/x
  3. Step 3: Cross multiply
    6,399x = 9,954 × 9,954
  4. Step 4: Simplify right side
    6,399x = 99,082,116
  5. Step 5: Solve for x
    x = 99,082,116/6,399
  6. Step 6: Final answer
    x = 15,484

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.