Home / 8,136.83-12,202.79-3,456.80

Finding the Fourth Proportional to 8,136.83, 12,202.79 and 3,456.80

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Solution

The fourth proportional to 8,136.83, 12,202.79 and 3,456.80 is: 5,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.83 : 12,202.79 = 3,456.80 : x
  2. Step 2: Convert to fraction form
    8,136.83/12,202.79 = 3,456.80/x
  3. Step 3: Cross multiply
    8,136.83x = 12,202.79 × 3,456.80
  4. Step 4: Simplify right side
    8,136.83x = 42,182,571.93
  5. Step 5: Solve for x
    x = 42,182,571.93/8,136.83
  6. Step 6: Final answer
    x = 5,184.15

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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.