Home / 11,909.56-17,865.30-4,118.44

Finding the Fourth Proportional to 11,909.56, 17,865.30 and 4,118.44

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Solution

The fourth proportional to 11,909.56, 17,865.30 and 4,118.44 is: 6,177.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.56 : 17,865.30 = 4,118.44 : x
  2. Step 2: Convert to fraction form
    11,909.56/17,865.30 = 4,118.44/x
  3. Step 3: Cross multiply
    11,909.56x = 17,865.30 × 4,118.44
  4. Step 4: Simplify right side
    11,909.56x = 73,577,166.13
  5. Step 5: Solve for x
    x = 73,577,166.13/11,909.56
  6. Step 6: Final answer
    x = 6,177.99

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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.