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Finding the Third Proportional to 8,128.69 and 16,804.13

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Solution

The third proportional to 8,128.69 and 16,804.13 is: 34,738.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.69 : 16,804.13 = 16,804.13 : x
  2. Step 2: Convert to fraction form
    8,128.69/16,804.13 = 16,804.13/x
  3. Step 3: Cross multiply
    8,128.69x = 16,804.13 × 16,804.13
  4. Step 4: Simplify right side
    8,128.69x = 282,378,617.02
  5. Step 5: Solve for x
    x = 282,378,617.02/8,128.69
  6. Step 6: Final answer
    x = 34,738.53

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.