Home / 8,511.57-12,771.96-3,584.64

Finding the Fourth Proportional to 8,511.57, 12,771.96 and 3,584.64

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Solution

The fourth proportional to 8,511.57, 12,771.96 and 3,584.64 is: 5,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.57 : 12,771.96 = 3,584.64 : x
  2. Step 2: Convert to fraction form
    8,511.57/12,771.96 = 3,584.64/x
  3. Step 3: Cross multiply
    8,511.57x = 12,771.96 × 3,584.64
  4. Step 4: Simplify right side
    8,511.57x = 45,782,878.69
  5. Step 5: Solve for x
    x = 45,782,878.69/8,511.57
  6. Step 6: Final answer
    x = 5,378.90

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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.