Home / 8,111.64-11,194.07-4,385.64

Finding the Fourth Proportional to 8,111.64, 11,194.07 and 4,385.64

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Solution

The fourth proportional to 8,111.64, 11,194.07 and 4,385.64 is: 6,052.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.64 : 11,194.07 = 4,385.64 : x
  2. Step 2: Convert to fraction form
    8,111.64/11,194.07 = 4,385.64/x
  3. Step 3: Cross multiply
    8,111.64x = 11,194.07 × 4,385.64
  4. Step 4: Simplify right side
    8,111.64x = 49,093,161.15
  5. Step 5: Solve for x
    x = 49,093,161.15/8,111.64
  6. Step 6: Final answer
    x = 6,052.19

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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.