Home / 11,940.35-17,909.10-3,620.03

Finding the Fourth Proportional to 11,940.35, 17,909.10 and 3,620.03

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Solution

The fourth proportional to 11,940.35, 17,909.10 and 3,620.03 is: 5,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.35 : 17,909.10 = 3,620.03 : x
  2. Step 2: Convert to fraction form
    11,940.35/17,909.10 = 3,620.03/x
  3. Step 3: Cross multiply
    11,940.35x = 17,909.10 × 3,620.03
  4. Step 4: Simplify right side
    11,940.35x = 64,831,389.73
  5. Step 5: Solve for x
    x = 64,831,389.73/11,940.35
  6. Step 6: Final answer
    x = 5,429.61

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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.