Home / 19,136.86-28,694.25-7,436.41

Finding the Fourth Proportional to 19,136.86, 28,694.25 and 7,436.41

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Solution

The fourth proportional to 19,136.86, 28,694.25 and 7,436.41 is: 11,150.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.86 : 28,694.25 = 7,436.41 : x
  2. Step 2: Convert to fraction form
    19,136.86/28,694.25 = 7,436.41/x
  3. Step 3: Cross multiply
    19,136.86x = 28,694.25 × 7,436.41
  4. Step 4: Simplify right side
    19,136.86x = 213,382,135.91
  5. Step 5: Solve for x
    x = 213,382,135.91/19,136.86
  6. Step 6: Final answer
    x = 11,150.32

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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.