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Finding the Third Proportional to 10,999.55 and 14,540.13

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Solution

The third proportional to 10,999.55 and 14,540.13 is: 19,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.55 : 14,540.13 = 14,540.13 : x
  2. Step 2: Convert to fraction form
    10,999.55/14,540.13 = 14,540.13/x
  3. Step 3: Cross multiply
    10,999.55x = 14,540.13 × 14,540.13
  4. Step 4: Simplify right side
    10,999.55x = 211,415,462.21
  5. Step 5: Solve for x
    x = 211,415,462.21/10,999.55
  6. Step 6: Final answer
    x = 19,220.38

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.