Home / 12,383.60-18,575.44-3,149.60

Finding the Fourth Proportional to 12,383.60, 18,575.44 and 3,149.60

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Solution

The fourth proportional to 12,383.60, 18,575.44 and 3,149.60 is: 4,724.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.60 : 18,575.44 = 3,149.60 : x
  2. Step 2: Convert to fraction form
    12,383.60/18,575.44 = 3,149.60/x
  3. Step 3: Cross multiply
    12,383.60x = 18,575.44 × 3,149.60
  4. Step 4: Simplify right side
    12,383.60x = 58,505,205.82
  5. Step 5: Solve for x
    x = 58,505,205.82/12,383.60
  6. Step 6: Final answer
    x = 4,724.41

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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.