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Finding the Third Proportional to 5,451 and 10,929

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Solution

The third proportional to 5,451 and 10,929 is: 21,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451 : 10,929 = 10,929 : x
  2. Step 2: Convert to fraction form
    5,451/10,929 = 10,929/x
  3. Step 3: Cross multiply
    5,451x = 10,929 × 10,929
  4. Step 4: Simplify right side
    5,451x = 119,443,041
  5. Step 5: Solve for x
    x = 119,443,041/5,451
  6. Step 6: Final answer
    x = 21,912.13

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Why These Related Problems?

These problems maintain the same ratio (2.00) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.