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Finding the Third Proportional to 5,378.63 and 11,622.38

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Solution

The third proportional to 5,378.63 and 11,622.38 is: 25,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.63 : 11,622.38 = 11,622.38 : x
  2. Step 2: Convert to fraction form
    5,378.63/11,622.38 = 11,622.38/x
  3. Step 3: Cross multiply
    5,378.63x = 11,622.38 × 11,622.38
  4. Step 4: Simplify right side
    5,378.63x = 135,079,600.64
  5. Step 5: Solve for x
    x = 135,079,600.64/5,378.63
  6. Step 6: Final answer
    x = 25,114.15

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.