Home / 13,919.88-19,198.26-12,237.72

Finding the Fourth Proportional to 13,919.88, 19,198.26 and 12,237.72

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Solution

The fourth proportional to 13,919.88, 19,198.26 and 12,237.72 is: 16,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.88 : 19,198.26 = 12,237.72 : x
  2. Step 2: Convert to fraction form
    13,919.88/19,198.26 = 12,237.72/x
  3. Step 3: Cross multiply
    13,919.88x = 19,198.26 × 12,237.72
  4. Step 4: Simplify right side
    13,919.88x = 234,942,930.37
  5. Step 5: Solve for x
    x = 234,942,930.37/13,919.88
  6. Step 6: Final answer
    x = 16,878.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.