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Finding the Fourth Proportional to 8,608.08, 11,890.68 and 6,936

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Solution

The fourth proportional to 8,608.08, 11,890.68 and 6,936 is: 9,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.08 : 11,890.68 = 6,936 : x
  2. Step 2: Convert to fraction form
    8,608.08/11,890.68 = 6,936/x
  3. Step 3: Cross multiply
    8,608.08x = 11,890.68 × 6,936
  4. Step 4: Simplify right side
    8,608.08x = 82,473,756.48
  5. Step 5: Solve for x
    x = 82,473,756.48/8,608.08
  6. Step 6: Final answer
    x = 9,580.97

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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.