Home / 8,619.74-12,919.16-3,933.33

Finding the Fourth Proportional to 8,619.74, 12,919.16 and 3,933.33

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Solution

The fourth proportional to 8,619.74, 12,919.16 and 3,933.33 is: 5,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.74 : 12,919.16 = 3,933.33 : x
  2. Step 2: Convert to fraction form
    8,619.74/12,919.16 = 3,933.33/x
  3. Step 3: Cross multiply
    8,619.74x = 12,919.16 × 3,933.33
  4. Step 4: Simplify right side
    8,619.74x = 50,815,329.44
  5. Step 5: Solve for x
    x = 50,815,329.44/8,619.74
  6. Step 6: Final answer
    x = 5,895.23

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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.