Home / 11,696.25-16,138.26-7,445.78

Finding the Fourth Proportional to 11,696.25, 16,138.26 and 7,445.78

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Solution

The fourth proportional to 11,696.25, 16,138.26 and 7,445.78 is: 10,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,696.25 : 16,138.26 = 7,445.78 : x
  2. Step 2: Convert to fraction form
    11,696.25/16,138.26 = 7,445.78/x
  3. Step 3: Cross multiply
    11,696.25x = 16,138.26 × 7,445.78
  4. Step 4: Simplify right side
    11,696.25x = 120,161,852.85
  5. Step 5: Solve for x
    x = 120,161,852.85/11,696.25
  6. Step 6: Final answer
    x = 10,273.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.