Home / 13,548.87-20,272.28-8,741.12

Finding the Fourth Proportional to 13,548.87, 20,272.28 and 8,741.12

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Solution

The fourth proportional to 13,548.87, 20,272.28 and 8,741.12 is: 13,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.87 : 20,272.28 = 8,741.12 : x
  2. Step 2: Convert to fraction form
    13,548.87/20,272.28 = 8,741.12/x
  3. Step 3: Cross multiply
    13,548.87x = 20,272.28 × 8,741.12
  4. Step 4: Simplify right side
    13,548.87x = 177,202,287.09
  5. Step 5: Solve for x
    x = 177,202,287.09/13,548.87
  6. Step 6: Final answer
    x = 13,078.75

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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.