Home / 11,760.64-17,643.36-3,969.28

Finding the Fourth Proportional to 11,760.64, 17,643.36 and 3,969.28

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Solution

The fourth proportional to 11,760.64, 17,643.36 and 3,969.28 is: 5,954.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,760.64 : 17,643.36 = 3,969.28 : x
  2. Step 2: Convert to fraction form
    11,760.64/17,643.36 = 3,969.28/x
  3. Step 3: Cross multiply
    11,760.64x = 17,643.36 × 3,969.28
  4. Step 4: Simplify right side
    11,760.64x = 70,031,435.98
  5. Step 5: Solve for x
    x = 70,031,435.98/11,760.64
  6. Step 6: Final answer
    x = 5,954.73

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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.