Home / 13,243.43-19,866.40-3,382.76

Finding the Fourth Proportional to 13,243.43, 19,866.40 and 3,382.76

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Solution

The fourth proportional to 13,243.43, 19,866.40 and 3,382.76 is: 5,074.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.43 : 19,866.40 = 3,382.76 : x
  2. Step 2: Convert to fraction form
    13,243.43/19,866.40 = 3,382.76/x
  3. Step 3: Cross multiply
    13,243.43x = 19,866.40 × 3,382.76
  4. Step 4: Simplify right side
    13,243.43x = 67,203,304.47
  5. Step 5: Solve for x
    x = 67,203,304.47/13,243.43
  6. Step 6: Final answer
    x = 5,074.46

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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.