Home / 13,229.21-19,843.83-10,309.70

Finding the Fourth Proportional to 13,229.21, 19,843.83 and 10,309.70

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Solution

The fourth proportional to 13,229.21, 19,843.83 and 10,309.70 is: 15,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.21 : 19,843.83 = 10,309.70 : x
  2. Step 2: Convert to fraction form
    13,229.21/19,843.83 = 10,309.70/x
  3. Step 3: Cross multiply
    13,229.21x = 19,843.83 × 10,309.70
  4. Step 4: Simplify right side
    13,229.21x = 204,583,983.76
  5. Step 5: Solve for x
    x = 204,583,983.76/13,229.21
  6. Step 6: Final answer
    x = 15,464.56

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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.