Home / 11,171.28-16,751.16-7,277.52

Finding the Fourth Proportional to 11,171.28, 16,751.16 and 7,277.52

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Solution

The fourth proportional to 11,171.28, 16,751.16 and 7,277.52 is: 10,912.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.28 : 16,751.16 = 7,277.52 : x
  2. Step 2: Convert to fraction form
    11,171.28/16,751.16 = 7,277.52/x
  3. Step 3: Cross multiply
    11,171.28x = 16,751.16 × 7,277.52
  4. Step 4: Simplify right side
    11,171.28x = 121,906,901.92
  5. Step 5: Solve for x
    x = 121,906,901.92/11,171.28
  6. Step 6: Final answer
    x = 10,912.53

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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.