Home / 10,816.25-16,222.95-3,421.44

Finding the Fourth Proportional to 10,816.25, 16,222.95 and 3,421.44

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Solution

The fourth proportional to 10,816.25, 16,222.95 and 3,421.44 is: 5,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,816.25 : 16,222.95 = 3,421.44 : x
  2. Step 2: Convert to fraction form
    10,816.25/16,222.95 = 3,421.44/x
  3. Step 3: Cross multiply
    10,816.25x = 16,222.95 × 3,421.44
  4. Step 4: Simplify right side
    10,816.25x = 55,505,850.05
  5. Step 5: Solve for x
    x = 55,505,850.05/10,816.25
  6. Step 6: Final answer
    x = 5,131.71

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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.