Home / 7,687.56-11,534.67-3,992.43

Finding the Fourth Proportional to 7,687.56, 11,534.67 and 3,992.43

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Solution

The fourth proportional to 7,687.56, 11,534.67 and 3,992.43 is: 5,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.56 : 11,534.67 = 3,992.43 : x
  2. Step 2: Convert to fraction form
    7,687.56/11,534.67 = 3,992.43/x
  3. Step 3: Cross multiply
    7,687.56x = 11,534.67 × 3,992.43
  4. Step 4: Simplify right side
    7,687.56x = 46,051,362.55
  5. Step 5: Solve for x
    x = 46,051,362.55/7,687.56
  6. Step 6: Final answer
    x = 5,990.37

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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.