Home / 8,813.64-13,219.92-3,619.38

Finding the Fourth Proportional to 8,813.64, 13,219.92 and 3,619.38

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Solution

The fourth proportional to 8,813.64, 13,219.92 and 3,619.38 is: 5,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.64 : 13,219.92 = 3,619.38 : x
  2. Step 2: Convert to fraction form
    8,813.64/13,219.92 = 3,619.38/x
  3. Step 3: Cross multiply
    8,813.64x = 13,219.92 × 3,619.38
  4. Step 4: Simplify right side
    8,813.64x = 47,847,914.05
  5. Step 5: Solve for x
    x = 47,847,914.05/8,813.64
  6. Step 6: Final answer
    x = 5,428.85

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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.