Home / 7,693.87-11,536.69-3,986.91

Finding the Fourth Proportional to 7,693.87, 11,536.69 and 3,986.91

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Solution

The fourth proportional to 7,693.87, 11,536.69 and 3,986.91 is: 5,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.87 : 11,536.69 = 3,986.91 : x
  2. Step 2: Convert to fraction form
    7,693.87/11,536.69 = 3,986.91/x
  3. Step 3: Cross multiply
    7,693.87x = 11,536.69 × 3,986.91
  4. Step 4: Simplify right side
    7,693.87x = 45,995,744.73
  5. Step 5: Solve for x
    x = 45,995,744.73/7,693.87
  6. Step 6: Final answer
    x = 5,978.23

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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.