Home / 12,620.98-18,934.44-3,856.60

Finding the Fourth Proportional to 12,620.98, 18,934.44 and 3,856.60

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Solution

The fourth proportional to 12,620.98, 18,934.44 and 3,856.60 is: 5,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620.98 : 18,934.44 = 3,856.60 : x
  2. Step 2: Convert to fraction form
    12,620.98/18,934.44 = 3,856.60/x
  3. Step 3: Cross multiply
    12,620.98x = 18,934.44 × 3,856.60
  4. Step 4: Simplify right side
    12,620.98x = 73,022,561.30
  5. Step 5: Solve for x
    x = 73,022,561.30/12,620.98
  6. Step 6: Final answer
    x = 5,785.81

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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.