Home / 13,633.21-20,450.26-3,771.66

Finding the Fourth Proportional to 13,633.21, 20,450.26 and 3,771.66

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Solution

The fourth proportional to 13,633.21, 20,450.26 and 3,771.66 is: 5,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.21 : 20,450.26 = 3,771.66 : x
  2. Step 2: Convert to fraction form
    13,633.21/20,450.26 = 3,771.66/x
  3. Step 3: Cross multiply
    13,633.21x = 20,450.26 × 3,771.66
  4. Step 4: Simplify right side
    13,633.21x = 77,131,416.21
  5. Step 5: Solve for x
    x = 77,131,416.21/13,633.21
  6. Step 6: Final answer
    x = 5,657.61

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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.