Home / 11,255.14-15,531.29-6,219.31

Finding the Fourth Proportional to 11,255.14, 15,531.29 and 6,219.31

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Solution

The fourth proportional to 11,255.14, 15,531.29 and 6,219.31 is: 8,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.14 : 15,531.29 = 6,219.31 : x
  2. Step 2: Convert to fraction form
    11,255.14/15,531.29 = 6,219.31/x
  3. Step 3: Cross multiply
    11,255.14x = 15,531.29 × 6,219.31
  4. Step 4: Simplify right side
    11,255.14x = 96,593,907.21
  5. Step 5: Solve for x
    x = 96,593,907.21/11,255.14
  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.