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Finding the Third Proportional to 5,428.50 and 11,127

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Solution

The third proportional to 5,428.50 and 11,127 is: 22,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.50 : 11,127 = 11,127 : x
  2. Step 2: Convert to fraction form
    5,428.50/11,127 = 11,127/x
  3. Step 3: Cross multiply
    5,428.50x = 11,127 × 11,127
  4. Step 4: Simplify right side
    5,428.50x = 123,810,129
  5. Step 5: Solve for x
    x = 123,810,129/5,428.50
  6. Step 6: Final answer
    x = 22,807.43

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.