Home / 12,143.77-18,216.30-3,824.44

Finding the Fourth Proportional to 12,143.77, 18,216.30 and 3,824.44

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Solution

The fourth proportional to 12,143.77, 18,216.30 and 3,824.44 is: 5,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.77 : 18,216.30 = 3,824.44 : x
  2. Step 2: Convert to fraction form
    12,143.77/18,216.30 = 3,824.44/x
  3. Step 3: Cross multiply
    12,143.77x = 18,216.30 × 3,824.44
  4. Step 4: Simplify right side
    12,143.77x = 69,667,115.17
  5. Step 5: Solve for x
    x = 69,667,115.17/12,143.77
  6. Step 6: Final answer
    x = 5,736.86

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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.