Home / 12,491.27-18,736.94-3,725.99

Finding the Fourth Proportional to 12,491.27, 18,736.94 and 3,725.99

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Solution

The fourth proportional to 12,491.27, 18,736.94 and 3,725.99 is: 5,589.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.27 : 18,736.94 = 3,725.99 : x
  2. Step 2: Convert to fraction form
    12,491.27/18,736.94 = 3,725.99/x
  3. Step 3: Cross multiply
    12,491.27x = 18,736.94 × 3,725.99
  4. Step 4: Simplify right side
    12,491.27x = 69,813,651.07
  5. Step 5: Solve for x
    x = 69,813,651.07/12,491.27
  6. Step 6: Final answer
    x = 5,589.00

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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.