Home / 13,608.18-20,409.92-3,745.11

Finding the Fourth Proportional to 13,608.18, 20,409.92 and 3,745.11

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Solution

The fourth proportional to 13,608.18, 20,409.92 and 3,745.11 is: 5,617.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.18 : 20,409.92 = 3,745.11 : x
  2. Step 2: Convert to fraction form
    13,608.18/20,409.92 = 3,745.11/x
  3. Step 3: Cross multiply
    13,608.18x = 20,409.92 × 3,745.11
  4. Step 4: Simplify right side
    13,608.18x = 76,437,376.77
  5. Step 5: Solve for x
    x = 76,437,376.77/13,608.18
  6. Step 6: Final answer
    x = 5,617.02

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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.