Home / 13,613.46-20,421.33-3,752.73

Finding the Fourth Proportional to 13,613.46, 20,421.33 and 3,752.73

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Solution

The fourth proportional to 13,613.46, 20,421.33 and 3,752.73 is: 5,629.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.46 : 20,421.33 = 3,752.73 : x
  2. Step 2: Convert to fraction form
    13,613.46/20,421.33 = 3,752.73/x
  3. Step 3: Cross multiply
    13,613.46x = 20,421.33 × 3,752.73
  4. Step 4: Simplify right side
    13,613.46x = 76,635,737.73
  5. Step 5: Solve for x
    x = 76,635,737.73/13,613.46
  6. Step 6: Final answer
    x = 5,629.41

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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.