Home / 11,922.99-17,887.67-4,131.80

Finding the Fourth Proportional to 11,922.99, 17,887.67 and 4,131.80

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Solution

The fourth proportional to 11,922.99, 17,887.67 and 4,131.80 is: 6,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.99 : 17,887.67 = 4,131.80 : x
  2. Step 2: Convert to fraction form
    11,922.99/17,887.67 = 4,131.80/x
  3. Step 3: Cross multiply
    11,922.99x = 17,887.67 × 4,131.80
  4. Step 4: Simplify right side
    11,922.99x = 73,908,164.81
  5. Step 5: Solve for x
    x = 73,908,164.81/11,922.99
  6. Step 6: Final answer
    x = 6,198.79

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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.