Home / 8,103.33-12,159.78-3,423.03

Finding the Fourth Proportional to 8,103.33, 12,159.78 and 3,423.03

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Solution

The fourth proportional to 8,103.33, 12,159.78 and 3,423.03 is: 5,136.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.33 : 12,159.78 = 3,423.03 : x
  2. Step 2: Convert to fraction form
    8,103.33/12,159.78 = 3,423.03/x
  3. Step 3: Cross multiply
    8,103.33x = 12,159.78 × 3,423.03
  4. Step 4: Simplify right side
    8,103.33x = 41,623,291.73
  5. Step 5: Solve for x
    x = 41,623,291.73/8,103.33
  6. Step 6: Final answer
    x = 5,136.57

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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.