Home / 14,131.13-21,197.09-3,742.88

Finding the Fourth Proportional to 14,131.13, 21,197.09 and 3,742.88

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Solution

The fourth proportional to 14,131.13, 21,197.09 and 3,742.88 is: 5,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.13 : 21,197.09 = 3,742.88 : x
  2. Step 2: Convert to fraction form
    14,131.13/21,197.09 = 3,742.88/x
  3. Step 3: Cross multiply
    14,131.13x = 21,197.09 × 3,742.88
  4. Step 4: Simplify right side
    14,131.13x = 79,338,067.59
  5. Step 5: Solve for x
    x = 79,338,067.59/14,131.13
  6. Step 6: Final answer
    x = 5,614.42

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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.