Home / 10,581.08-15,871.38-2,789.86

Finding the Fourth Proportional to 10,581.08, 15,871.38 and 2,789.86

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Solution

The fourth proportional to 10,581.08, 15,871.38 and 2,789.86 is: 4,184.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.08 : 15,871.38 = 2,789.86 : x
  2. Step 2: Convert to fraction form
    10,581.08/15,871.38 = 2,789.86/x
  3. Step 3: Cross multiply
    10,581.08x = 15,871.38 × 2,789.86
  4. Step 4: Simplify right side
    10,581.08x = 44,278,928.21
  5. Step 5: Solve for x
    x = 44,278,928.21/10,581.08
  6. Step 6: Final answer
    x = 4,184.73

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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.