Home / 13,579.58-20,369.39-3,718.94

Finding the Fourth Proportional to 13,579.58, 20,369.39 and 3,718.94

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Solution

The fourth proportional to 13,579.58, 20,369.39 and 3,718.94 is: 5,578.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.58 : 20,369.39 = 3,718.94 : x
  2. Step 2: Convert to fraction form
    13,579.58/20,369.39 = 3,718.94/x
  3. Step 3: Cross multiply
    13,579.58x = 20,369.39 × 3,718.94
  4. Step 4: Simplify right side
    13,579.58x = 75,752,418.80
  5. Step 5: Solve for x
    x = 75,752,418.80/13,579.58
  6. Step 6: Final answer
    x = 5,578.41

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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.