Home / 7,786.71-11,672.91-3,105.59

Finding the Fourth Proportional to 7,786.71, 11,672.91 and 3,105.59

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Solution

The fourth proportional to 7,786.71, 11,672.91 and 3,105.59 is: 4,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.71 : 11,672.91 = 3,105.59 : x
  2. Step 2: Convert to fraction form
    7,786.71/11,672.91 = 3,105.59/x
  3. Step 3: Cross multiply
    7,786.71x = 11,672.91 × 3,105.59
  4. Step 4: Simplify right side
    7,786.71x = 36,251,214.20
  5. Step 5: Solve for x
    x = 36,251,214.20/7,786.71
  6. Step 6: Final answer
    x = 4,655.52

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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.