Home / 8,540.12-12,811.10-3,610.26

Finding the Fourth Proportional to 8,540.12, 12,811.10 and 3,610.26

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Solution

The fourth proportional to 8,540.12, 12,811.10 and 3,610.26 is: 5,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.12 : 12,811.10 = 3,610.26 : x
  2. Step 2: Convert to fraction form
    8,540.12/12,811.10 = 3,610.26/x
  3. Step 3: Cross multiply
    8,540.12x = 12,811.10 × 3,610.26
  4. Step 4: Simplify right side
    8,540.12x = 46,251,383.83
  5. Step 5: Solve for x
    x = 46,251,383.83/8,540.12
  6. Step 6: Final answer
    x = 5,415.78

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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.