Home / 11,221.44-15,479.20-6,504

Finding the Fourth Proportional to 11,221.44, 15,479.20 and 6,504

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Solution

The fourth proportional to 11,221.44, 15,479.20 and 6,504 is: 8,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.44 : 15,479.20 = 6,504 : x
  2. Step 2: Convert to fraction form
    11,221.44/15,479.20 = 6,504/x
  3. Step 3: Cross multiply
    11,221.44x = 15,479.20 × 6,504
  4. Step 4: Simplify right side
    11,221.44x = 100,676,716.80
  5. Step 5: Solve for x
    x = 100,676,716.80/11,221.44
  6. Step 6: Final answer
    x = 8,971.82

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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.