Home / 19,695.68-29,520.96-7,838.36

Finding the Fourth Proportional to 19,695.68, 29,520.96 and 7,838.36

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Solution

The fourth proportional to 19,695.68, 29,520.96 and 7,838.36 is: 11,748.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.68 : 29,520.96 = 7,838.36 : x
  2. Step 2: Convert to fraction form
    19,695.68/29,520.96 = 7,838.36/x
  3. Step 3: Cross multiply
    19,695.68x = 29,520.96 × 7,838.36
  4. Step 4: Simplify right side
    19,695.68x = 231,395,912.03
  5. Step 5: Solve for x
    x = 231,395,912.03/19,695.68
  6. Step 6: Final answer
    x = 11,748.56

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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.