Home / 13,479.75-20,223.61-6,910.56

Finding the Fourth Proportional to 13,479.75, 20,223.61 and 6,910.56

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Solution

The fourth proportional to 13,479.75, 20,223.61 and 6,910.56 is: 10,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.75 : 20,223.61 = 6,910.56 : x
  2. Step 2: Convert to fraction form
    13,479.75/20,223.61 = 6,910.56/x
  3. Step 3: Cross multiply
    13,479.75x = 20,223.61 × 6,910.56
  4. Step 4: Simplify right side
    13,479.75x = 139,756,453.05
  5. Step 5: Solve for x
    x = 139,756,453.05/13,479.75
  6. Step 6: Final answer
    x = 10,367.88

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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.