Home / 18,629.73-27,944.58-4,778.73

Finding the Fourth Proportional to 18,629.73, 27,944.58 and 4,778.73

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Solution

The fourth proportional to 18,629.73, 27,944.58 and 4,778.73 is: 7,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.73 : 27,944.58 = 4,778.73 : x
  2. Step 2: Convert to fraction form
    18,629.73/27,944.58 = 4,778.73/x
  3. Step 3: Cross multiply
    18,629.73x = 27,944.58 × 4,778.73
  4. Step 4: Simplify right side
    18,629.73x = 133,539,602.78
  5. Step 5: Solve for x
    x = 133,539,602.78/18,629.73
  6. Step 6: Final answer
    x = 7,168.09

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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.