Home / 13,338.20-20,007.30-4,104.20

Finding the Fourth Proportional to 13,338.20, 20,007.30 and 4,104.20

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Solution

The fourth proportional to 13,338.20, 20,007.30 and 4,104.20 is: 6,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.20 : 20,007.30 = 4,104.20 : x
  2. Step 2: Convert to fraction form
    13,338.20/20,007.30 = 4,104.20/x
  3. Step 3: Cross multiply
    13,338.20x = 20,007.30 × 4,104.20
  4. Step 4: Simplify right side
    13,338.20x = 82,113,960.66
  5. Step 5: Solve for x
    x = 82,113,960.66/13,338.20
  6. Step 6: Final answer
    x = 6,156.30

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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.