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Finding the Third Proportional to 7,997.63 and 12,777.19

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Solution

The third proportional to 7,997.63 and 12,777.19 is: 20,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,997.63 : 12,777.19 = 12,777.19 : x
  2. Step 2: Convert to fraction form
    7,997.63/12,777.19 = 12,777.19/x
  3. Step 3: Cross multiply
    7,997.63x = 12,777.19 × 12,777.19
  4. Step 4: Simplify right side
    7,997.63x = 163,256,520.41
  5. Step 5: Solve for x
    x = 163,256,520.41/7,997.63
  6. Step 6: Final answer
    x = 20,413.13

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.