Home / 10,878.60-16,318.32-3,382.92

Finding the Fourth Proportional to 10,878.60, 16,318.32 and 3,382.92

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Solution

The fourth proportional to 10,878.60, 16,318.32 and 3,382.92 is: 5,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.60 : 16,318.32 = 3,382.92 : x
  2. Step 2: Convert to fraction form
    10,878.60/16,318.32 = 3,382.92/x
  3. Step 3: Cross multiply
    10,878.60x = 16,318.32 × 3,382.92
  4. Step 4: Simplify right side
    10,878.60x = 55,203,571.09
  5. Step 5: Solve for x
    x = 55,203,571.09/10,878.60
  6. Step 6: Final answer
    x = 5,074.51

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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.