Home / 8,716.71-13,067.69-3,782.62

Finding the Fourth Proportional to 8,716.71, 13,067.69 and 3,782.62

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Solution

The fourth proportional to 8,716.71, 13,067.69 and 3,782.62 is: 5,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.71 : 13,067.69 = 3,782.62 : x
  2. Step 2: Convert to fraction form
    8,716.71/13,067.69 = 3,782.62/x
  3. Step 3: Cross multiply
    8,716.71x = 13,067.69 × 3,782.62
  4. Step 4: Simplify right side
    8,716.71x = 49,430,040.21
  5. Step 5: Solve for x
    x = 49,430,040.21/8,716.71
  6. Step 6: Final answer
    x = 5,670.72

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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.