Home / 11,819.68-17,727.60-5,579.68

Finding the Fourth Proportional to 11,819.68, 17,727.60 and 5,579.68

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Solution

The fourth proportional to 11,819.68, 17,727.60 and 5,579.68 is: 8,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.68 : 17,727.60 = 5,579.68 : x
  2. Step 2: Convert to fraction form
    11,819.68/17,727.60 = 5,579.68/x
  3. Step 3: Cross multiply
    11,819.68x = 17,727.60 × 5,579.68
  4. Step 4: Simplify right side
    11,819.68x = 98,914,335.17
  5. Step 5: Solve for x
    x = 98,914,335.17/11,819.68
  6. Step 6: Final answer
    x = 8,368.61

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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.