Home / 8,475.75-12,704.43-3,789.30

Finding the Fourth Proportional to 8,475.75, 12,704.43 and 3,789.30

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Solution

The fourth proportional to 8,475.75, 12,704.43 and 3,789.30 is: 5,679.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.75 : 12,704.43 = 3,789.30 : x
  2. Step 2: Convert to fraction form
    8,475.75/12,704.43 = 3,789.30/x
  3. Step 3: Cross multiply
    8,475.75x = 12,704.43 × 3,789.30
  4. Step 4: Simplify right side
    8,475.75x = 48,140,896.60
  5. Step 5: Solve for x
    x = 48,140,896.60/8,475.75
  6. Step 6: Final answer
    x = 5,679.84

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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.