Home / 8,257.24-12,389.39-4,311.44

Finding the Fourth Proportional to 8,257.24, 12,389.39 and 4,311.44

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Solution

The fourth proportional to 8,257.24, 12,389.39 and 4,311.44 is: 6,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.24 : 12,389.39 = 4,311.44 : x
  2. Step 2: Convert to fraction form
    8,257.24/12,389.39 = 4,311.44/x
  3. Step 3: Cross multiply
    8,257.24x = 12,389.39 × 4,311.44
  4. Step 4: Simplify right side
    8,257.24x = 53,416,160.44
  5. Step 5: Solve for x
    x = 53,416,160.44/8,257.24
  6. Step 6: Final answer
    x = 6,469.01

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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.