Home / 11,212.08-16,816.68-3,418.80

Finding the Fourth Proportional to 11,212.08, 16,816.68 and 3,418.80

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Solution

The fourth proportional to 11,212.08, 16,816.68 and 3,418.80 is: 5,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.08 : 16,816.68 = 3,418.80 : x
  2. Step 2: Convert to fraction form
    11,212.08/16,816.68 = 3,418.80/x
  3. Step 3: Cross multiply
    11,212.08x = 16,816.68 × 3,418.80
  4. Step 4: Simplify right side
    11,212.08x = 57,492,865.58
  5. Step 5: Solve for x
    x = 57,492,865.58/11,212.08
  6. Step 6: Final answer
    x = 5,127.76

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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.