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Finding the Third Proportional to 8,206.88 and 12,406.50

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Solution

The third proportional to 8,206.88 and 12,406.50 is: 18,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.88 : 12,406.50 = 12,406.50 : x
  2. Step 2: Convert to fraction form
    8,206.88/12,406.50 = 12,406.50/x
  3. Step 3: Cross multiply
    8,206.88x = 12,406.50 × 12,406.50
  4. Step 4: Simplify right side
    8,206.88x = 153,921,242.25
  5. Step 5: Solve for x
    x = 153,921,242.25/8,206.88
  6. Step 6: Final answer
    x = 18,755.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.