Home / 17,120.85-25,685.73-5,274.33

Finding the Fourth Proportional to 17,120.85, 25,685.73 and 5,274.33

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Solution

The fourth proportional to 17,120.85, 25,685.73 and 5,274.33 is: 7,912.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.85 : 25,685.73 = 5,274.33 : x
  2. Step 2: Convert to fraction form
    17,120.85/25,685.73 = 5,274.33/x
  3. Step 3: Cross multiply
    17,120.85x = 25,685.73 × 5,274.33
  4. Step 4: Simplify right side
    17,120.85x = 135,475,016.31
  5. Step 5: Solve for x
    x = 135,475,016.31/17,120.85
  6. Step 6: Final answer
    x = 7,912.87

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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.