Home / 13,650.96-20,474.42-3,789.21

Finding the Fourth Proportional to 13,650.96, 20,474.42 and 3,789.21

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Solution

The fourth proportional to 13,650.96, 20,474.42 and 3,789.21 is: 5,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.96 : 20,474.42 = 3,789.21 : x
  2. Step 2: Convert to fraction form
    13,650.96/20,474.42 = 3,789.21/x
  3. Step 3: Cross multiply
    13,650.96x = 20,474.42 × 3,789.21
  4. Step 4: Simplify right side
    13,650.96x = 77,581,858.06
  5. Step 5: Solve for x
    x = 77,581,858.06/13,650.96
  6. Step 6: Final answer
    x = 5,683.25

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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.