Home / 13,523.81-20,286.44-4,170.26

Finding the Fourth Proportional to 13,523.81, 20,286.44 and 4,170.26

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Solution

The fourth proportional to 13,523.81, 20,286.44 and 4,170.26 is: 6,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.81 : 20,286.44 = 4,170.26 : x
  2. Step 2: Convert to fraction form
    13,523.81/20,286.44 = 4,170.26/x
  3. Step 3: Cross multiply
    13,523.81x = 20,286.44 × 4,170.26
  4. Step 4: Simplify right side
    13,523.81x = 84,599,729.27
  5. Step 5: Solve for x
    x = 84,599,729.27/13,523.81
  6. Step 6: Final answer
    x = 6,255.61

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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.