Home / 8,081.86-12,122.70-2,238.25

Finding the Fourth Proportional to 8,081.86, 12,122.70 and 2,238.25

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Solution

The fourth proportional to 8,081.86, 12,122.70 and 2,238.25 is: 3,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.86 : 12,122.70 = 2,238.25 : x
  2. Step 2: Convert to fraction form
    8,081.86/12,122.70 = 2,238.25/x
  3. Step 3: Cross multiply
    8,081.86x = 12,122.70 × 2,238.25
  4. Step 4: Simplify right side
    8,081.86x = 27,133,633.28
  5. Step 5: Solve for x
    x = 27,133,633.28/8,081.86
  6. Step 6: Final answer
    x = 3,357.35

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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.