Home / 8,039.88-12,057.66-3,878.82

Finding the Fourth Proportional to 8,039.88, 12,057.66 and 3,878.82

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Solution

The fourth proportional to 8,039.88, 12,057.66 and 3,878.82 is: 5,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.88 : 12,057.66 = 3,878.82 : x
  2. Step 2: Convert to fraction form
    8,039.88/12,057.66 = 3,878.82/x
  3. Step 3: Cross multiply
    8,039.88x = 12,057.66 × 3,878.82
  4. Step 4: Simplify right side
    8,039.88x = 46,769,492.76
  5. Step 5: Solve for x
    x = 46,769,492.76/8,039.88
  6. Step 6: Final answer
    x = 5,817.19

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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.