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Finding the Third Proportional to 4,378.50 and 9,608.63

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Solution

The third proportional to 4,378.50 and 9,608.63 is: 21,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.50 : 9,608.63 = 9,608.63 : x
  2. Step 2: Convert to fraction form
    4,378.50/9,608.63 = 9,608.63/x
  3. Step 3: Cross multiply
    4,378.50x = 9,608.63 × 9,608.63
  4. Step 4: Simplify right side
    4,378.50x = 92,325,674.39
  5. Step 5: Solve for x
    x = 92,325,674.39/4,378.50
  6. Step 6: Final answer
    x = 21,086.14

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.