Home / 12,027.28-18,029.58-4,231.12

Finding the Fourth Proportional to 12,027.28, 18,029.58 and 4,231.12

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Solution

The fourth proportional to 12,027.28, 18,029.58 and 4,231.12 is: 6,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,027.28 : 18,029.58 = 4,231.12 : x
  2. Step 2: Convert to fraction form
    12,027.28/18,029.58 = 4,231.12/x
  3. Step 3: Cross multiply
    12,027.28x = 18,029.58 × 4,231.12
  4. Step 4: Simplify right side
    12,027.28x = 76,285,316.53
  5. Step 5: Solve for x
    x = 76,285,316.53/12,027.28
  6. Step 6: Final answer
    x = 6,342.69

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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.