Home / 11,879.09-16,383.05-7,336.28

Finding the Fourth Proportional to 11,879.09, 16,383.05 and 7,336.28

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Solution

The fourth proportional to 11,879.09, 16,383.05 and 7,336.28 is: 10,117.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.09 : 16,383.05 = 7,336.28 : x
  2. Step 2: Convert to fraction form
    11,879.09/16,383.05 = 7,336.28/x
  3. Step 3: Cross multiply
    11,879.09x = 16,383.05 × 7,336.28
  4. Step 4: Simplify right side
    11,879.09x = 120,190,642.05
  5. Step 5: Solve for x
    x = 120,190,642.05/11,879.09
  6. Step 6: Final answer
    x = 10,117.83

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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.