Home / 13,613.22-20,426.31-6,213.87

Finding the Fourth Proportional to 13,613.22, 20,426.31 and 6,213.87

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Solution

The fourth proportional to 13,613.22, 20,426.31 and 6,213.87 is: 9,323.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.22 : 20,426.31 = 6,213.87 : x
  2. Step 2: Convert to fraction form
    13,613.22/20,426.31 = 6,213.87/x
  3. Step 3: Cross multiply
    13,613.22x = 20,426.31 × 6,213.87
  4. Step 4: Simplify right side
    13,613.22x = 126,926,434.92
  5. Step 5: Solve for x
    x = 126,926,434.92/13,613.22
  6. Step 6: Final answer
    x = 9,323.76

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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.