Home / 8,928.92-13,391.55-3,380.36

Finding the Fourth Proportional to 8,928.92, 13,391.55 and 3,380.36

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Solution

The fourth proportional to 8,928.92, 13,391.55 and 3,380.36 is: 5,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.92 : 13,391.55 = 3,380.36 : x
  2. Step 2: Convert to fraction form
    8,928.92/13,391.55 = 3,380.36/x
  3. Step 3: Cross multiply
    8,928.92x = 13,391.55 × 3,380.36
  4. Step 4: Simplify right side
    8,928.92x = 45,268,193.00
  5. Step 5: Solve for x
    x = 45,268,193.00/8,928.92
  6. Step 6: Final answer
    x = 5,069.84

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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.