Home / 8,300.85-12,453.99-3,917.73

Finding the Fourth Proportional to 8,300.85, 12,453.99 and 3,917.73

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Solution

The fourth proportional to 8,300.85, 12,453.99 and 3,917.73 is: 5,877.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300.85 : 12,453.99 = 3,917.73 : x
  2. Step 2: Convert to fraction form
    8,300.85/12,453.99 = 3,917.73/x
  3. Step 3: Cross multiply
    8,300.85x = 12,453.99 × 3,917.73
  4. Step 4: Simplify right side
    8,300.85x = 48,791,370.24
  5. Step 5: Solve for x
    x = 48,791,370.24/8,300.85
  6. Step 6: Final answer
    x = 5,877.88

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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.