Home / 13,674.91-20,512.36-3,286.66

Finding the Fourth Proportional to 13,674.91, 20,512.36 and 3,286.66

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Solution

The fourth proportional to 13,674.91, 20,512.36 and 3,286.66 is: 4,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.91 : 20,512.36 = 3,286.66 : x
  2. Step 2: Convert to fraction form
    13,674.91/20,512.36 = 3,286.66/x
  3. Step 3: Cross multiply
    13,674.91x = 20,512.36 × 3,286.66
  4. Step 4: Simplify right side
    13,674.91x = 67,417,136.68
  5. Step 5: Solve for x
    x = 67,417,136.68/13,674.91
  6. Step 6: Final answer
    x = 4,929.99

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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.