Home / 8,629.44-12,947.80-5,512.96

Finding the Fourth Proportional to 8,629.44, 12,947.80 and 5,512.96

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Solution

The fourth proportional to 8,629.44, 12,947.80 and 5,512.96 is: 8,271.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.44 : 12,947.80 = 5,512.96 : x
  2. Step 2: Convert to fraction form
    8,629.44/12,947.80 = 5,512.96/x
  3. Step 3: Cross multiply
    8,629.44x = 12,947.80 × 5,512.96
  4. Step 4: Simplify right side
    8,629.44x = 71,380,716.23
  5. Step 5: Solve for x
    x = 71,380,716.23/8,629.44
  6. Step 6: Final answer
    x = 8,271.77

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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.