Home / 8,136.16-12,195.86-3,203.80

Finding the Fourth Proportional to 8,136.16, 12,195.86 and 3,203.80

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Solution

The fourth proportional to 8,136.16, 12,195.86 and 3,203.80 is: 4,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.16 : 12,195.86 = 3,203.80 : x
  2. Step 2: Convert to fraction form
    8,136.16/12,195.86 = 3,203.80/x
  3. Step 3: Cross multiply
    8,136.16x = 12,195.86 × 3,203.80
  4. Step 4: Simplify right side
    8,136.16x = 39,073,096.27
  5. Step 5: Solve for x
    x = 39,073,096.27/8,136.16
  6. Step 6: Final answer
    x = 4,802.40

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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.