Home / 11,581.60-15,982.61-6,276.39

Finding the Fourth Proportional to 11,581.60, 15,982.61 and 6,276.39

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Solution

The fourth proportional to 11,581.60, 15,982.61 and 6,276.39 is: 8,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.60 : 15,982.61 = 6,276.39 : x
  2. Step 2: Convert to fraction form
    11,581.60/15,982.61 = 6,276.39/x
  3. Step 3: Cross multiply
    11,581.60x = 15,982.61 × 6,276.39
  4. Step 4: Simplify right side
    11,581.60x = 100,313,093.58
  5. Step 5: Solve for x
    x = 100,313,093.58/11,581.60
  6. Step 6: Final answer
    x = 8,661.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.