Home / 13,939.42-20,908.38-10,195.06

Finding the Fourth Proportional to 13,939.42, 20,908.38 and 10,195.06

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Solution

The fourth proportional to 13,939.42, 20,908.38 and 10,195.06 is: 15,292.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.42 : 20,908.38 = 10,195.06 : x
  2. Step 2: Convert to fraction form
    13,939.42/20,908.38 = 10,195.06/x
  3. Step 3: Cross multiply
    13,939.42x = 20,908.38 × 10,195.06
  4. Step 4: Simplify right side
    13,939.42x = 213,162,188.60
  5. Step 5: Solve for x
    x = 213,162,188.60/13,939.42
  6. Step 6: Final answer
    x = 15,292.04

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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.