Home / 13,760.26-20,640.39-5,546.50

Finding the Fourth Proportional to 13,760.26, 20,640.39 and 5,546.50

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Solution

The fourth proportional to 13,760.26, 20,640.39 and 5,546.50 is: 8,319.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.26 : 20,640.39 = 5,546.50 : x
  2. Step 2: Convert to fraction form
    13,760.26/20,640.39 = 5,546.50/x
  3. Step 3: Cross multiply
    13,760.26x = 20,640.39 × 5,546.50
  4. Step 4: Simplify right side
    13,760.26x = 114,481,923.14
  5. Step 5: Solve for x
    x = 114,481,923.14/13,760.26
  6. Step 6: Final answer
    x = 8,319.75

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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.