Home / 13,340.22-20,012.49-4,105.50

Finding the Fourth Proportional to 13,340.22, 20,012.49 and 4,105.50

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Solution

The fourth proportional to 13,340.22, 20,012.49 and 4,105.50 is: 6,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.22 : 20,012.49 = 4,105.50 : x
  2. Step 2: Convert to fraction form
    13,340.22/20,012.49 = 4,105.50/x
  3. Step 3: Cross multiply
    13,340.22x = 20,012.49 × 4,105.50
  4. Step 4: Simplify right side
    13,340.22x = 82,161,277.70
  5. Step 5: Solve for x
    x = 82,161,277.70/13,340.22
  6. Step 6: Final answer
    x = 6,158.91

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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.