Home / 11,213.36-16,819.92-4,286.24

Finding the Fourth Proportional to 11,213.36, 16,819.92 and 4,286.24

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Solution

The fourth proportional to 11,213.36, 16,819.92 and 4,286.24 is: 6,429.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.36 : 16,819.92 = 4,286.24 : x
  2. Step 2: Convert to fraction form
    11,213.36/16,819.92 = 4,286.24/x
  3. Step 3: Cross multiply
    11,213.36x = 16,819.92 × 4,286.24
  4. Step 4: Simplify right side
    11,213.36x = 72,094,213.90
  5. Step 5: Solve for x
    x = 72,094,213.90/11,213.36
  6. Step 6: Final answer
    x = 6,429.31

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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.