Home / 13,511.44-20,273.88-7,584.64

Finding the Fourth Proportional to 13,511.44, 20,273.88 and 7,584.64

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Solution

The fourth proportional to 13,511.44, 20,273.88 and 7,584.64 is: 11,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.44 : 20,273.88 = 7,584.64 : x
  2. Step 2: Convert to fraction form
    13,511.44/20,273.88 = 7,584.64/x
  3. Step 3: Cross multiply
    13,511.44x = 20,273.88 × 7,584.64
  4. Step 4: Simplify right side
    13,511.44x = 153,770,081.20
  5. Step 5: Solve for x
    x = 153,770,081.20/13,511.44
  6. Step 6: Final answer
    x = 11,380.73

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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.