Home / 12,067.50-16,651.80-6,761.55

Finding the Fourth Proportional to 12,067.50, 16,651.80 and 6,761.55

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Solution

The fourth proportional to 12,067.50, 16,651.80 and 6,761.55 is: 9,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067.50 : 16,651.80 = 6,761.55 : x
  2. Step 2: Convert to fraction form
    12,067.50/16,651.80 = 6,761.55/x
  3. Step 3: Cross multiply
    12,067.50x = 16,651.80 × 6,761.55
  4. Step 4: Simplify right side
    12,067.50x = 112,591,978.29
  5. Step 5: Solve for x
    x = 112,591,978.29/12,067.50
  6. Step 6: Final answer
    x = 9,330.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.