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Finding the Third Proportional to 5,440.88 and 8,647.13

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Solution

The third proportional to 5,440.88 and 8,647.13 is: 13,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.88 : 8,647.13 = 8,647.13 : x
  2. Step 2: Convert to fraction form
    5,440.88/8,647.13 = 8,647.13/x
  3. Step 3: Cross multiply
    5,440.88x = 8,647.13 × 8,647.13
  4. Step 4: Simplify right side
    5,440.88x = 74,772,770.77
  5. Step 5: Solve for x
    x = 74,772,770.77/5,440.88
  6. Step 6: Final answer
    x = 13,742.78

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.