Home / 11,285.13-16,921.37-7,731.27

Finding the Fourth Proportional to 11,285.13, 16,921.37 and 7,731.27

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Solution

The fourth proportional to 11,285.13, 16,921.37 and 7,731.27 is: 11,592.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.13 : 16,921.37 = 7,731.27 : x
  2. Step 2: Convert to fraction form
    11,285.13/16,921.37 = 7,731.27/x
  3. Step 3: Cross multiply
    11,285.13x = 16,921.37 × 7,731.27
  4. Step 4: Simplify right side
    11,285.13x = 130,823,556.98
  5. Step 5: Solve for x
    x = 130,823,556.98/11,285.13
  6. Step 6: Final answer
    x = 11,592.56

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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.