Home / 8,021.87-12,034.85-3,340.32

Finding the Fourth Proportional to 8,021.87, 12,034.85 and 3,340.32

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Solution

The fourth proportional to 8,021.87, 12,034.85 and 3,340.32 is: 5,011.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.87 : 12,034.85 = 3,340.32 : x
  2. Step 2: Convert to fraction form
    8,021.87/12,034.85 = 3,340.32/x
  3. Step 3: Cross multiply
    8,021.87x = 12,034.85 × 3,340.32
  4. Step 4: Simplify right side
    8,021.87x = 40,200,233.45
  5. Step 5: Solve for x
    x = 40,200,233.45/8,021.87
  6. Step 6: Final answer
    x = 5,011.33

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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.