Home / 11,512.05-17,268.07-7,615.55

Finding the Fourth Proportional to 11,512.05, 17,268.07 and 7,615.55

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Solution

The fourth proportional to 11,512.05, 17,268.07 and 7,615.55 is: 11,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.05 : 17,268.07 = 7,615.55 : x
  2. Step 2: Convert to fraction form
    11,512.05/17,268.07 = 7,615.55/x
  3. Step 3: Cross multiply
    11,512.05x = 17,268.07 × 7,615.55
  4. Step 4: Simplify right side
    11,512.05x = 131,505,764.15
  5. Step 5: Solve for x
    x = 131,505,764.15/11,512.05
  6. Step 6: Final answer
    x = 11,423.31

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1.5x scale

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.