Home / 13,613.82-20,435.04-12,063.75

Finding the Fourth Proportional to 13,613.82, 20,435.04 and 12,063.75

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Solution

The fourth proportional to 13,613.82, 20,435.04 and 12,063.75 is: 18,108.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.82 : 20,435.04 = 12,063.75 : x
  2. Step 2: Convert to fraction form
    13,613.82/20,435.04 = 12,063.75/x
  3. Step 3: Cross multiply
    13,613.82x = 20,435.04 × 12,063.75
  4. Step 4: Simplify right side
    13,613.82x = 246,523,213.80
  5. Step 5: Solve for x
    x = 246,523,213.80/13,613.82
  6. Step 6: Final answer
    x = 18,108.31

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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.