Home / 11,512.20-17,268.30-7,615.70

Finding the Fourth Proportional to 11,512.20, 17,268.30 and 7,615.70

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Solution

The fourth proportional to 11,512.20, 17,268.30 and 7,615.70 is: 11,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.20 : 17,268.30 = 7,615.70 : x
  2. Step 2: Convert to fraction form
    11,512.20/17,268.30 = 7,615.70/x
  3. Step 3: Cross multiply
    11,512.20x = 17,268.30 × 7,615.70
  4. Step 4: Simplify right side
    11,512.20x = 131,510,192.31
  5. Step 5: Solve for x
    x = 131,510,192.31/11,512.20
  6. Step 6: Final answer
    x = 11,423.55

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Similar ratio
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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.