Home / 8,257.41-12,389.20-3,328.45

Finding the Fourth Proportional to 8,257.41, 12,389.20 and 3,328.45

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Solution

The fourth proportional to 8,257.41, 12,389.20 and 3,328.45 is: 4,993.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.41 : 12,389.20 = 3,328.45 : x
  2. Step 2: Convert to fraction form
    8,257.41/12,389.20 = 3,328.45/x
  3. Step 3: Cross multiply
    8,257.41x = 12,389.20 × 3,328.45
  4. Step 4: Simplify right side
    8,257.41x = 41,236,793.45
  5. Step 5: Solve for x
    x = 41,236,793.45/8,257.41
  6. Step 6: Final answer
    x = 4,993.91

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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.