Home / 12,342.30-18,517.77-3,577.74

Finding the Fourth Proportional to 12,342.30, 18,517.77 and 3,577.74

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Solution

The fourth proportional to 12,342.30, 18,517.77 and 3,577.74 is: 5,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.30 : 18,517.77 = 3,577.74 : x
  2. Step 2: Convert to fraction form
    12,342.30/18,517.77 = 3,577.74/x
  3. Step 3: Cross multiply
    12,342.30x = 18,517.77 × 3,577.74
  4. Step 4: Simplify right side
    12,342.30x = 66,251,766.44
  5. Step 5: Solve for x
    x = 66,251,766.44/12,342.30
  6. Step 6: Final answer
    x = 5,367.86

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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.