Home / 12,081.20-16,672.77-6,776.31

Finding the Fourth Proportional to 12,081.20, 16,672.77 and 6,776.31

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Solution

The fourth proportional to 12,081.20, 16,672.77 and 6,776.31 is: 9,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.20 : 16,672.77 = 6,776.31 : x
  2. Step 2: Convert to fraction form
    12,081.20/16,672.77 = 6,776.31/x
  3. Step 3: Cross multiply
    12,081.20x = 16,672.77 × 6,776.31
  4. Step 4: Simplify right side
    12,081.20x = 112,979,858.08
  5. Step 5: Solve for x
    x = 112,979,858.08/12,081.20
  6. Step 6: Final answer
    x = 9,351.71

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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.