Home / 13,523.13-20,286.63-4,163.92

Finding the Fourth Proportional to 13,523.13, 20,286.63 and 4,163.92

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Solution

The fourth proportional to 13,523.13, 20,286.63 and 4,163.92 is: 6,246.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.13 : 20,286.63 = 4,163.92 : x
  2. Step 2: Convert to fraction form
    13,523.13/20,286.63 = 4,163.92/x
  3. Step 3: Cross multiply
    13,523.13x = 20,286.63 × 4,163.92
  4. Step 4: Simplify right side
    13,523.13x = 84,471,853.67
  5. Step 5: Solve for x
    x = 84,471,853.67/13,523.13
  6. Step 6: Final answer
    x = 6,246.47

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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.