Home / 13,936.44-20,912.82-5,177.52

Finding the Fourth Proportional to 13,936.44, 20,912.82 and 5,177.52

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Solution

The fourth proportional to 13,936.44, 20,912.82 and 5,177.52 is: 7,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.44 : 20,912.82 = 5,177.52 : x
  2. Step 2: Convert to fraction form
    13,936.44/20,912.82 = 5,177.52/x
  3. Step 3: Cross multiply
    13,936.44x = 20,912.82 × 5,177.52
  4. Step 4: Simplify right side
    13,936.44x = 108,276,543.81
  5. Step 5: Solve for x
    x = 108,276,543.81/13,936.44
  6. Step 6: Final answer
    x = 7,769.31

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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.