Home / 19,067.68-28,586.16-8,131.36

Finding the Fourth Proportional to 19,067.68, 28,586.16 and 8,131.36

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Solution

The fourth proportional to 19,067.68, 28,586.16 and 8,131.36 is: 12,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,067.68 : 28,586.16 = 8,131.36 : x
  2. Step 2: Convert to fraction form
    19,067.68/28,586.16 = 8,131.36/x
  3. Step 3: Cross multiply
    19,067.68x = 28,586.16 × 8,131.36
  4. Step 4: Simplify right side
    19,067.68x = 232,444,357.98
  5. Step 5: Solve for x
    x = 232,444,357.98/19,067.68
  6. Step 6: Final answer
    x = 12,190.49

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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.