Home / 11,272.44-16,912.26-5,429.64

Finding the Fourth Proportional to 11,272.44, 16,912.26 and 5,429.64

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Solution

The fourth proportional to 11,272.44, 16,912.26 and 5,429.64 is: 8,146.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.44 : 16,912.26 = 5,429.64 : x
  2. Step 2: Convert to fraction form
    11,272.44/16,912.26 = 5,429.64/x
  3. Step 3: Cross multiply
    11,272.44x = 16,912.26 × 5,429.64
  4. Step 4: Simplify right side
    11,272.44x = 91,827,483.39
  5. Step 5: Solve for x
    x = 91,827,483.39/11,272.44
  6. Step 6: Final answer
    x = 8,146.19

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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.