Home / 11,581.72-15,982.72-6,276.68

Finding the Fourth Proportional to 11,581.72, 15,982.72 and 6,276.68

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Solution

The fourth proportional to 11,581.72, 15,982.72 and 6,276.68 is: 8,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.72 : 15,982.72 = 6,276.68 : x
  2. Step 2: Convert to fraction form
    11,581.72/15,982.72 = 6,276.68/x
  3. Step 3: Cross multiply
    11,581.72x = 15,982.72 × 6,276.68
  4. Step 4: Simplify right side
    11,581.72x = 100,318,418.97
  5. Step 5: Solve for x
    x = 100,318,418.97/11,581.72
  6. Step 6: Final answer
    x = 8,661.79

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1.5x scale

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.