Home / 11,027.28-16,542.60-7,664.40

Finding the Fourth Proportional to 11,027.28, 16,542.60 and 7,664.40

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Solution

The fourth proportional to 11,027.28, 16,542.60 and 7,664.40 is: 11,497.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,027.28 : 16,542.60 = 7,664.40 : x
  2. Step 2: Convert to fraction form
    11,027.28/16,542.60 = 7,664.40/x
  3. Step 3: Cross multiply
    11,027.28x = 16,542.60 × 7,664.40
  4. Step 4: Simplify right side
    11,027.28x = 126,789,103.44
  5. Step 5: Solve for x
    x = 126,789,103.44/11,027.28
  6. Step 6: Final answer
    x = 11,497.77

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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.