Home / 13,548.38-20,321.96-5,647.64

Finding the Fourth Proportional to 13,548.38, 20,321.96 and 5,647.64

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Solution

The fourth proportional to 13,548.38, 20,321.96 and 5,647.64 is: 8,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.38 : 20,321.96 = 5,647.64 : x
  2. Step 2: Convert to fraction form
    13,548.38/20,321.96 = 5,647.64/x
  3. Step 3: Cross multiply
    13,548.38x = 20,321.96 × 5,647.64
  4. Step 4: Simplify right side
    13,548.38x = 114,770,984.33
  5. Step 5: Solve for x
    x = 114,770,984.33/13,548.38
  6. Step 6: Final answer
    x = 8,471.20

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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.