Home / 13,869.63-20,804.39-3,481.38

Finding the Fourth Proportional to 13,869.63, 20,804.39 and 3,481.38

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Solution

The fourth proportional to 13,869.63, 20,804.39 and 3,481.38 is: 5,222.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.63 : 20,804.39 = 3,481.38 : x
  2. Step 2: Convert to fraction form
    13,869.63/20,804.39 = 3,481.38/x
  3. Step 3: Cross multiply
    13,869.63x = 20,804.39 × 3,481.38
  4. Step 4: Simplify right side
    13,869.63x = 72,427,987.26
  5. Step 5: Solve for x
    x = 72,427,987.26/13,869.63
  6. Step 6: Final answer
    x = 5,222.06

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1.5x scale

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.