Home / 8,261.37-12,387.78-3,329.67

Finding the Fourth Proportional to 8,261.37, 12,387.78 and 3,329.67

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Solution

The fourth proportional to 8,261.37, 12,387.78 and 3,329.67 is: 4,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.37 : 12,387.78 = 3,329.67 : x
  2. Step 2: Convert to fraction form
    8,261.37/12,387.78 = 3,329.67/x
  3. Step 3: Cross multiply
    8,261.37x = 12,387.78 × 3,329.67
  4. Step 4: Simplify right side
    8,261.37x = 41,247,219.43
  5. Step 5: Solve for x
    x = 41,247,219.43/8,261.37
  6. Step 6: Final answer
    x = 4,992.78

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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.