Home / 11,209.28-16,814.38-3,311.80

Finding the Fourth Proportional to 11,209.28, 16,814.38 and 3,311.80

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Solution

The fourth proportional to 11,209.28, 16,814.38 and 3,311.80 is: 4,967.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.28 : 16,814.38 = 3,311.80 : x
  2. Step 2: Convert to fraction form
    11,209.28/16,814.38 = 3,311.80/x
  3. Step 3: Cross multiply
    11,209.28x = 16,814.38 × 3,311.80
  4. Step 4: Simplify right side
    11,209.28x = 55,685,813.37
  5. Step 5: Solve for x
    x = 55,685,813.37/11,209.28
  6. Step 6: Final answer
    x = 4,967.83

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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.