Home / 18,940.58-26,154.52-11,879.18

Finding the Fourth Proportional to 18,940.58, 26,154.52 and 11,879.18

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Solution

The fourth proportional to 18,940.58, 26,154.52 and 11,879.18 is: 16,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.58 : 26,154.52 = 11,879.18 : x
  2. Step 2: Convert to fraction form
    18,940.58/26,154.52 = 11,879.18/x
  3. Step 3: Cross multiply
    18,940.58x = 26,154.52 × 11,879.18
  4. Step 4: Simplify right side
    18,940.58x = 310,694,120.12
  5. Step 5: Solve for x
    x = 310,694,120.12/18,940.58
  6. Step 6: Final answer
    x = 16,403.63

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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.