Home / 7,447.72-11,171.38-2,517.32

Finding the Fourth Proportional to 7,447.72, 11,171.38 and 2,517.32

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Solution

The fourth proportional to 7,447.72, 11,171.38 and 2,517.32 is: 3,775.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.72 : 11,171.38 = 2,517.32 : x
  2. Step 2: Convert to fraction form
    7,447.72/11,171.38 = 2,517.32/x
  3. Step 3: Cross multiply
    7,447.72x = 11,171.38 × 2,517.32
  4. Step 4: Simplify right side
    7,447.72x = 28,121,938.30
  5. Step 5: Solve for x
    x = 28,121,938.30/7,447.72
  6. Step 6: Final answer
    x = 3,775.91

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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.