Home / 12,081.91-16,672.99-6,776.71

Finding the Fourth Proportional to 12,081.91, 16,672.99 and 6,776.71

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Solution

The fourth proportional to 12,081.91, 16,672.99 and 6,776.71 is: 9,351.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.91 : 16,672.99 = 6,776.71 : x
  2. Step 2: Convert to fraction form
    12,081.91/16,672.99 = 6,776.71/x
  3. Step 3: Cross multiply
    12,081.91x = 16,672.99 × 6,776.71
  4. Step 4: Simplify right side
    12,081.91x = 112,988,018.06
  5. Step 5: Solve for x
    x = 112,988,018.06/12,081.91
  6. Step 6: Final answer
    x = 9,351.83

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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.