Home / 14,179.80-21,269.72-3,791.55

Finding the Fourth Proportional to 14,179.80, 21,269.72 and 3,791.55

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Solution

The fourth proportional to 14,179.80, 21,269.72 and 3,791.55 is: 5,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.80 : 21,269.72 = 3,791.55 : x
  2. Step 2: Convert to fraction form
    14,179.80/21,269.72 = 3,791.55/x
  3. Step 3: Cross multiply
    14,179.80x = 21,269.72 × 3,791.55
  4. Step 4: Simplify right side
    14,179.80x = 80,645,206.87
  5. Step 5: Solve for x
    x = 80,645,206.87/14,179.80
  6. Step 6: Final answer
    x = 5,687.33

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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.