Home / 8,015.94-12,023.46-2,821.38

Finding the Fourth Proportional to 8,015.94, 12,023.46 and 2,821.38

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Solution

The fourth proportional to 8,015.94, 12,023.46 and 2,821.38 is: 4,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.94 : 12,023.46 = 2,821.38 : x
  2. Step 2: Convert to fraction form
    8,015.94/12,023.46 = 2,821.38/x
  3. Step 3: Cross multiply
    8,015.94x = 12,023.46 × 2,821.38
  4. Step 4: Simplify right side
    8,015.94x = 33,922,749.57
  5. Step 5: Solve for x
    x = 33,922,749.57/8,015.94
  6. Step 6: Final answer
    x = 4,231.91

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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.