Home / 12,845.22-19,267.91-3,960.43

Finding the Fourth Proportional to 12,845.22, 19,267.91 and 3,960.43

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Solution

The fourth proportional to 12,845.22, 19,267.91 and 3,960.43 is: 5,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.22 : 19,267.91 = 3,960.43 : x
  2. Step 2: Convert to fraction form
    12,845.22/19,267.91 = 3,960.43/x
  3. Step 3: Cross multiply
    12,845.22x = 19,267.91 × 3,960.43
  4. Step 4: Simplify right side
    12,845.22x = 76,309,208.80
  5. Step 5: Solve for x
    x = 76,309,208.80/12,845.22
  6. Step 6: Final answer
    x = 5,940.67

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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.