Home / 8,124.35-12,184.79-2,578.19

Finding the Fourth Proportional to 8,124.35, 12,184.79 and 2,578.19

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Solution

The fourth proportional to 8,124.35, 12,184.79 and 2,578.19 is: 3,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.35 : 12,184.79 = 2,578.19 : x
  2. Step 2: Convert to fraction form
    8,124.35/12,184.79 = 2,578.19/x
  3. Step 3: Cross multiply
    8,124.35x = 12,184.79 × 2,578.19
  4. Step 4: Simplify right side
    8,124.35x = 31,414,629.92
  5. Step 5: Solve for x
    x = 31,414,629.92/8,124.35
  6. Step 6: Final answer
    x = 3,866.73

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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.