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Finding the Fourth Proportional to 8,662.59, 11,958.96 and 6,668.77

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Solution

The fourth proportional to 8,662.59, 11,958.96 and 6,668.77 is: 9,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.59 : 11,958.96 = 6,668.77 : x
  2. Step 2: Convert to fraction form
    8,662.59/11,958.96 = 6,668.77/x
  3. Step 3: Cross multiply
    8,662.59x = 11,958.96 × 6,668.77
  4. Step 4: Simplify right side
    8,662.59x = 79,751,553.68
  5. Step 5: Solve for x
    x = 79,751,553.68/8,662.59
  6. Step 6: Final answer
    x = 9,206.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.