Home / 13,745.16-20,613.42-3,884.76

Finding the Fourth Proportional to 13,745.16, 20,613.42 and 3,884.76

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Solution

The fourth proportional to 13,745.16, 20,613.42 and 3,884.76 is: 5,825.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.16 : 20,613.42 = 3,884.76 : x
  2. Step 2: Convert to fraction form
    13,745.16/20,613.42 = 3,884.76/x
  3. Step 3: Cross multiply
    13,745.16x = 20,613.42 × 3,884.76
  4. Step 4: Simplify right side
    13,745.16x = 80,078,189.48
  5. Step 5: Solve for x
    x = 80,078,189.48/13,745.16
  6. Step 6: Final answer
    x = 5,825.92

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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.