Home / 7,664.50-11,507.26-3,969.28

Finding the Fourth Proportional to 7,664.50, 11,507.26 and 3,969.28

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Solution

The fourth proportional to 7,664.50, 11,507.26 and 3,969.28 is: 5,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.50 : 11,507.26 = 3,969.28 : x
  2. Step 2: Convert to fraction form
    7,664.50/11,507.26 = 3,969.28/x
  3. Step 3: Cross multiply
    7,664.50x = 11,507.26 × 3,969.28
  4. Step 4: Simplify right side
    7,664.50x = 45,675,536.97
  5. Step 5: Solve for x
    x = 45,675,536.97/7,664.50
  6. Step 6: Final answer
    x = 5,959.36

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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.