Home / 11,909.64-17,867.16-4,118.52

Finding the Fourth Proportional to 11,909.64, 17,867.16 and 4,118.52

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Solution

The fourth proportional to 11,909.64, 17,867.16 and 4,118.52 is: 6,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.64 : 17,867.16 = 4,118.52 : x
  2. Step 2: Convert to fraction form
    11,909.64/17,867.16 = 4,118.52/x
  3. Step 3: Cross multiply
    11,909.64x = 17,867.16 × 4,118.52
  4. Step 4: Simplify right side
    11,909.64x = 73,586,255.80
  5. Step 5: Solve for x
    x = 73,586,255.80/11,909.64
  6. Step 6: Final answer
    x = 6,178.71

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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.