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Finding the Fourth Proportional to 6,668.67, 9,997.06 and 3,380.07

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Solution

The fourth proportional to 6,668.67, 9,997.06 and 3,380.07 is: 5,067.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.67 : 9,997.06 = 3,380.07 : x
  2. Step 2: Convert to fraction form
    6,668.67/9,997.06 = 3,380.07/x
  3. Step 3: Cross multiply
    6,668.67x = 9,997.06 × 3,380.07
  4. Step 4: Simplify right side
    6,668.67x = 33,790,762.59
  5. Step 5: Solve for x
    x = 33,790,762.59/6,668.67
  6. Step 6: Final answer
    x = 5,067.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.