Home / 13,745.21-20,617.81-3,883.66

Finding the Fourth Proportional to 13,745.21, 20,617.81 and 3,883.66

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Solution

The fourth proportional to 13,745.21, 20,617.81 and 3,883.66 is: 5,825.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.21 : 20,617.81 = 3,883.66 : x
  2. Step 2: Convert to fraction form
    13,745.21/20,617.81 = 3,883.66/x
  3. Step 3: Cross multiply
    13,745.21x = 20,617.81 × 3,883.66
  4. Step 4: Simplify right side
    13,745.21x = 80,072,502.73
  5. Step 5: Solve for x
    x = 80,072,502.73/13,745.21
  6. Step 6: Final answer
    x = 5,825.49

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Similar ratio
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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.