Home / 8,708.93-13,063.89-2,786.33

Finding the Fourth Proportional to 8,708.93, 13,063.89 and 2,786.33

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Solution

The fourth proportional to 8,708.93, 13,063.89 and 2,786.33 is: 4,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.93 : 13,063.89 = 2,786.33 : x
  2. Step 2: Convert to fraction form
    8,708.93/13,063.89 = 2,786.33/x
  3. Step 3: Cross multiply
    8,708.93x = 13,063.89 × 2,786.33
  4. Step 4: Simplify right side
    8,708.93x = 36,400,308.62
  5. Step 5: Solve for x
    x = 36,400,308.62/8,708.93
  6. Step 6: Final answer
    x = 4,179.65

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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.