Home / 11,919.39-17,872.11-3,596.91

Finding the Fourth Proportional to 11,919.39, 17,872.11 and 3,596.91

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Solution

The fourth proportional to 11,919.39, 17,872.11 and 3,596.91 is: 5,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.39 : 17,872.11 = 3,596.91 : x
  2. Step 2: Convert to fraction form
    11,919.39/17,872.11 = 3,596.91/x
  3. Step 3: Cross multiply
    11,919.39x = 17,872.11 × 3,596.91
  4. Step 4: Simplify right side
    11,919.39x = 64,284,371.18
  5. Step 5: Solve for x
    x = 64,284,371.18/11,919.39
  6. Step 6: Final answer
    x = 5,393.26

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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.