Home / 11,456.28-17,182.40-5,214.83

Finding the Fourth Proportional to 11,456.28, 17,182.40 and 5,214.83

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Solution

The fourth proportional to 11,456.28, 17,182.40 and 5,214.83 is: 7,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,456.28 : 17,182.40 = 5,214.83 : x
  2. Step 2: Convert to fraction form
    11,456.28/17,182.40 = 5,214.83/x
  3. Step 3: Cross multiply
    11,456.28x = 17,182.40 × 5,214.83
  4. Step 4: Simplify right side
    11,456.28x = 89,603,183.01
  5. Step 5: Solve for x
    x = 89,603,183.01/11,456.28
  6. Step 6: Final answer
    x = 7,821.32

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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.