Home / 11,909.27-17,867.90-4,515.80

Finding the Fourth Proportional to 11,909.27, 17,867.90 and 4,515.80

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Solution

The fourth proportional to 11,909.27, 17,867.90 and 4,515.80 is: 6,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.27 : 17,867.90 = 4,515.80 : x
  2. Step 2: Convert to fraction form
    11,909.27/17,867.90 = 4,515.80/x
  3. Step 3: Cross multiply
    11,909.27x = 17,867.90 × 4,515.80
  4. Step 4: Simplify right side
    11,909.27x = 80,687,784.77
  5. Step 5: Solve for x
    x = 80,687,784.77/11,909.27
  6. Step 6: Final answer
    x = 6,775.21

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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.