Home / 13,940.06-20,911.80-4,581.10

Finding the Fourth Proportional to 13,940.06, 20,911.80 and 4,581.10

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Solution

The fourth proportional to 13,940.06, 20,911.80 and 4,581.10 is: 6,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.06 : 20,911.80 = 4,581.10 : x
  2. Step 2: Convert to fraction form
    13,940.06/20,911.80 = 4,581.10/x
  3. Step 3: Cross multiply
    13,940.06x = 20,911.80 × 4,581.10
  4. Step 4: Simplify right side
    13,940.06x = 95,799,046.98
  5. Step 5: Solve for x
    x = 95,799,046.98/13,940.06
  6. Step 6: Final answer
    x = 6,872.21

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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.