Home / 11,581.38-15,982.38-6,276.29

Finding the Fourth Proportional to 11,581.38, 15,982.38 and 6,276.29

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Solution

The fourth proportional to 11,581.38, 15,982.38 and 6,276.29 is: 8,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.38 : 15,982.38 = 6,276.29 : x
  2. Step 2: Convert to fraction form
    11,581.38/15,982.38 = 6,276.29/x
  3. Step 3: Cross multiply
    11,581.38x = 15,982.38 × 6,276.29
  4. Step 4: Simplify right side
    11,581.38x = 100,309,971.86
  5. Step 5: Solve for x
    x = 100,309,971.86/11,581.38
  6. Step 6: Final answer
    x = 8,661.31

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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.