Home / 12,804.28-19,206.42-4,039.88

Finding the Fourth Proportional to 12,804.28, 19,206.42 and 4,039.88

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Solution

The fourth proportional to 12,804.28, 19,206.42 and 4,039.88 is: 6,059.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.28 : 19,206.42 = 4,039.88 : x
  2. Step 2: Convert to fraction form
    12,804.28/19,206.42 = 4,039.88/x
  3. Step 3: Cross multiply
    12,804.28x = 19,206.42 × 4,039.88
  4. Step 4: Simplify right side
    12,804.28x = 77,591,520.85
  5. Step 5: Solve for x
    x = 77,591,520.85/12,804.28
  6. Step 6: Final answer
    x = 6,059.81

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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.