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Finding the Fourth Proportional to 8,136.66, 12,200.67 and 3,750.39

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Solution

The fourth proportional to 8,136.66, 12,200.67 and 3,750.39 is: 5,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.66 : 12,200.67 = 3,750.39 : x
  2. Step 2: Convert to fraction form
    8,136.66/12,200.67 = 3,750.39/x
  3. Step 3: Cross multiply
    8,136.66x = 12,200.67 × 3,750.39
  4. Step 4: Simplify right side
    8,136.66x = 45,757,270.76
  5. Step 5: Solve for x
    x = 45,757,270.76/8,136.66
  6. Step 6: Final answer
    x = 5,623.59

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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.