Home / 13,745.82-20,601.84-5,417.48

Finding the Fourth Proportional to 13,745.82, 20,601.84 and 5,417.48

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Solution

The fourth proportional to 13,745.82, 20,601.84 and 5,417.48 is: 8,119.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.82 : 20,601.84 = 5,417.48 : x
  2. Step 2: Convert to fraction form
    13,745.82/20,601.84 = 5,417.48/x
  3. Step 3: Cross multiply
    13,745.82x = 20,601.84 × 5,417.48
  4. Step 4: Simplify right side
    13,745.82x = 111,610,056.16
  5. Step 5: Solve for x
    x = 111,610,056.16/13,745.82
  6. Step 6: Final answer
    x = 8,119.56

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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.