Home / 13,940.55-20,910.83-5,173.73

Finding the Fourth Proportional to 13,940.55, 20,910.83 and 5,173.73

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Solution

The fourth proportional to 13,940.55, 20,910.83 and 5,173.73 is: 7,760.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.55 : 20,910.83 = 5,173.73 : x
  2. Step 2: Convert to fraction form
    13,940.55/20,910.83 = 5,173.73/x
  3. Step 3: Cross multiply
    13,940.55x = 20,910.83 × 5,173.73
  4. Step 4: Simplify right side
    13,940.55x = 108,186,858.07
  5. Step 5: Solve for x
    x = 108,186,858.07/13,940.55
  6. Step 6: Final answer
    x = 7,760.59

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Similar ratio
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1.5x scale

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.