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Finding the Third Proportional to 5,455.50 and 11,640

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Solution

The third proportional to 5,455.50 and 11,640 is: 24,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.50 : 11,640 = 11,640 : x
  2. Step 2: Convert to fraction form
    5,455.50/11,640 = 11,640/x
  3. Step 3: Cross multiply
    5,455.50x = 11,640 × 11,640
  4. Step 4: Simplify right side
    5,455.50x = 135,489,600
  5. Step 5: Solve for x
    x = 135,489,600/5,455.50
  6. Step 6: Final answer
    x = 24,835.41

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.