Home / 11,319.23-15,621.30-6,540.11

Finding the Fourth Proportional to 11,319.23, 15,621.30 and 6,540.11

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Solution

The fourth proportional to 11,319.23, 15,621.30 and 6,540.11 is: 9,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.23 : 15,621.30 = 6,540.11 : x
  2. Step 2: Convert to fraction form
    11,319.23/15,621.30 = 6,540.11/x
  3. Step 3: Cross multiply
    11,319.23x = 15,621.30 × 6,540.11
  4. Step 4: Simplify right side
    11,319.23x = 102,164,942.24
  5. Step 5: Solve for x
    x = 102,164,942.24/11,319.23
  6. Step 6: Final answer
    x = 9,025.78

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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.