Home / 8,540.22-12,811.52-2,992.28

Finding the Fourth Proportional to 8,540.22, 12,811.52 and 2,992.28

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Solution

The fourth proportional to 8,540.22, 12,811.52 and 2,992.28 is: 4,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.22 : 12,811.52 = 2,992.28 : x
  2. Step 2: Convert to fraction form
    8,540.22/12,811.52 = 2,992.28/x
  3. Step 3: Cross multiply
    8,540.22x = 12,811.52 × 2,992.28
  4. Step 4: Simplify right side
    8,540.22x = 38,335,655.07
  5. Step 5: Solve for x
    x = 38,335,655.07/8,540.22
  6. Step 6: Final answer
    x = 4,488.84

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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.