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Finding the Third Proportional to 8,655.19 and 12,792.94

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Solution

The third proportional to 8,655.19 and 12,792.94 is: 18,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.19 : 12,792.94 = 12,792.94 : x
  2. Step 2: Convert to fraction form
    8,655.19/12,792.94 = 12,792.94/x
  3. Step 3: Cross multiply
    8,655.19x = 12,792.94 × 12,792.94
  4. Step 4: Simplify right side
    8,655.19x = 163,659,249.88
  5. Step 5: Solve for x
    x = 163,659,249.88/8,655.19
  6. Step 6: Final answer
    x = 18,908.80

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.