Home / 13,171.45-19,757.19-5,380.27

Finding the Fourth Proportional to 13,171.45, 19,757.19 and 5,380.27

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Solution

The fourth proportional to 13,171.45, 19,757.19 and 5,380.27 is: 8,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.45 : 19,757.19 = 5,380.27 : x
  2. Step 2: Convert to fraction form
    13,171.45/19,757.19 = 5,380.27/x
  3. Step 3: Cross multiply
    13,171.45x = 19,757.19 × 5,380.27
  4. Step 4: Simplify right side
    13,171.45x = 106,299,016.64
  5. Step 5: Solve for x
    x = 106,299,016.64/13,171.45
  6. Step 6: Final answer
    x = 8,070.41

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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.