Home / 13,815.11-20,724.02-5,493.26

Finding the Fourth Proportional to 13,815.11, 20,724.02 and 5,493.26

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Solution

The fourth proportional to 13,815.11, 20,724.02 and 5,493.26 is: 8,240.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.11 : 20,724.02 = 5,493.26 : x
  2. Step 2: Convert to fraction form
    13,815.11/20,724.02 = 5,493.26/x
  3. Step 3: Cross multiply
    13,815.11x = 20,724.02 × 5,493.26
  4. Step 4: Simplify right side
    13,815.11x = 113,842,299.02
  5. Step 5: Solve for x
    x = 113,842,299.02/13,815.11
  6. Step 6: Final answer
    x = 8,240.42

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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.