Home / 10,819.93-16,229.91-4,980.64

Finding the Fourth Proportional to 10,819.93, 16,229.91 and 4,980.64

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Solution

The fourth proportional to 10,819.93, 16,229.91 and 4,980.64 is: 7,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.93 : 16,229.91 = 4,980.64 : x
  2. Step 2: Convert to fraction form
    10,819.93/16,229.91 = 4,980.64/x
  3. Step 3: Cross multiply
    10,819.93x = 16,229.91 × 4,980.64
  4. Step 4: Simplify right side
    10,819.93x = 80,835,338.94
  5. Step 5: Solve for x
    x = 80,835,338.94/10,819.93
  6. Step 6: Final answer
    x = 7,470.97

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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.