Home / 13,249.53-19,874.41-3,889.70

Finding the Fourth Proportional to 13,249.53, 19,874.41 and 3,889.70

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Solution

The fourth proportional to 13,249.53, 19,874.41 and 3,889.70 is: 5,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.53 : 19,874.41 = 3,889.70 : x
  2. Step 2: Convert to fraction form
    13,249.53/19,874.41 = 3,889.70/x
  3. Step 3: Cross multiply
    13,249.53x = 19,874.41 × 3,889.70
  4. Step 4: Simplify right side
    13,249.53x = 77,305,532.54
  5. Step 5: Solve for x
    x = 77,305,532.54/13,249.53
  6. Step 6: Final answer
    x = 5,834.59

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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.