Home / 14,178.80-21,268.22-3,790.55

Finding the Fourth Proportional to 14,178.80, 21,268.22 and 3,790.55

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Solution

The fourth proportional to 14,178.80, 21,268.22 and 3,790.55 is: 5,685.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.80 : 21,268.22 = 3,790.55 : x
  2. Step 2: Convert to fraction form
    14,178.80/21,268.22 = 3,790.55/x
  3. Step 3: Cross multiply
    14,178.80x = 21,268.22 × 3,790.55
  4. Step 4: Simplify right side
    14,178.80x = 80,618,187.23
  5. Step 5: Solve for x
    x = 80,618,187.23/14,178.80
  6. Step 6: Final answer
    x = 5,685.83

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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.