Home / 8,022.40-12,027.20-3,401.60

Finding the Fourth Proportional to 8,022.40, 12,027.20 and 3,401.60

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Solution

The fourth proportional to 8,022.40, 12,027.20 and 3,401.60 is: 5,099.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,022.40 : 12,027.20 = 3,401.60 : x
  2. Step 2: Convert to fraction form
    8,022.40/12,027.20 = 3,401.60/x
  3. Step 3: Cross multiply
    8,022.40x = 12,027.20 × 3,401.60
  4. Step 4: Simplify right side
    8,022.40x = 40,911,723.52
  5. Step 5: Solve for x
    x = 40,911,723.52/8,022.40
  6. Step 6: Final answer
    x = 5,099.69

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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.