Home / 11,255.14-15,531.30-6,219.30

Finding the Fourth Proportional to 11,255.14, 15,531.30 and 6,219.30

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Solution

The fourth proportional to 11,255.14, 15,531.30 and 6,219.30 is: 8,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.14 : 15,531.30 = 6,219.30 : x
  2. Step 2: Convert to fraction form
    11,255.14/15,531.30 = 6,219.30/x
  3. Step 3: Cross multiply
    11,255.14x = 15,531.30 × 6,219.30
  4. Step 4: Simplify right side
    11,255.14x = 96,593,814.09
  5. Step 5: Solve for x
    x = 96,593,814.09/11,255.14
  6. Step 6: Final answer
    x = 8,582.20

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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.