Home / 7,514.94-11,268.96-3,129.78

Finding the Fourth Proportional to 7,514.94, 11,268.96 and 3,129.78

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Solution

The fourth proportional to 7,514.94, 11,268.96 and 3,129.78 is: 4,693.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,514.94 : 11,268.96 = 3,129.78 : x
  2. Step 2: Convert to fraction form
    7,514.94/11,268.96 = 3,129.78/x
  3. Step 3: Cross multiply
    7,514.94x = 11,268.96 × 3,129.78
  4. Step 4: Simplify right side
    7,514.94x = 35,269,365.63
  5. Step 5: Solve for x
    x = 35,269,365.63/7,514.94
  6. Step 6: Final answer
    x = 4,693.23

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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.