Home / 9,161.28-13,741.56-3,005.28

Finding the Fourth Proportional to 9,161.28, 13,741.56 and 3,005.28

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Solution

The fourth proportional to 9,161.28, 13,741.56 and 3,005.28 is: 4,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.28 : 13,741.56 = 3,005.28 : x
  2. Step 2: Convert to fraction form
    9,161.28/13,741.56 = 3,005.28/x
  3. Step 3: Cross multiply
    9,161.28x = 13,741.56 × 3,005.28
  4. Step 4: Simplify right side
    9,161.28x = 41,297,235.44
  5. Step 5: Solve for x
    x = 41,297,235.44/9,161.28
  6. Step 6: Final answer
    x = 4,507.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.