Home / 11,406.22-15,741.20-6,370.45

Finding the Fourth Proportional to 11,406.22, 15,741.20 and 6,370.45

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Solution

The fourth proportional to 11,406.22, 15,741.20 and 6,370.45 is: 8,791.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.22 : 15,741.20 = 6,370.45 : x
  2. Step 2: Convert to fraction form
    11,406.22/15,741.20 = 6,370.45/x
  3. Step 3: Cross multiply
    11,406.22x = 15,741.20 × 6,370.45
  4. Step 4: Simplify right side
    11,406.22x = 100,278,504.11
  5. Step 5: Solve for x
    x = 100,278,504.11/11,406.22
  6. Step 6: Final answer
    x = 8,791.57

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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.