Home / 13,614.28-20,419.56-5,293.54

Finding the Fourth Proportional to 13,614.28, 20,419.56 and 5,293.54

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Solution

The fourth proportional to 13,614.28, 20,419.56 and 5,293.54 is: 7,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.28 : 20,419.56 = 5,293.54 : x
  2. Step 2: Convert to fraction form
    13,614.28/20,419.56 = 5,293.54/x
  3. Step 3: Cross multiply
    13,614.28x = 20,419.56 × 5,293.54
  4. Step 4: Simplify right side
    13,614.28x = 108,091,757.64
  5. Step 5: Solve for x
    x = 108,091,757.64/13,614.28
  6. Step 6: Final answer
    x = 7,939.59

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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.