Home / 12,149.43-16,766.77-6,772.22

Finding the Fourth Proportional to 12,149.43, 16,766.77 and 6,772.22

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Solution

The fourth proportional to 12,149.43, 16,766.77 and 6,772.22 is: 9,345.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.43 : 16,766.77 = 6,772.22 : x
  2. Step 2: Convert to fraction form
    12,149.43/16,766.77 = 6,772.22/x
  3. Step 3: Cross multiply
    12,149.43x = 16,766.77 × 6,772.22
  4. Step 4: Simplify right side
    12,149.43x = 113,548,255.13
  5. Step 5: Solve for x
    x = 113,548,255.13/12,149.43
  6. Step 6: Final answer
    x = 9,345.97

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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.