Home / 8,081.06-12,121.60-2,887.34

Finding the Fourth Proportional to 8,081.06, 12,121.60 and 2,887.34

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Solution

The fourth proportional to 8,081.06, 12,121.60 and 2,887.34 is: 4,331.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.06 : 12,121.60 = 2,887.34 : x
  2. Step 2: Convert to fraction form
    8,081.06/12,121.60 = 2,887.34/x
  3. Step 3: Cross multiply
    8,081.06x = 12,121.60 × 2,887.34
  4. Step 4: Simplify right side
    8,081.06x = 34,999,180.54
  5. Step 5: Solve for x
    x = 34,999,180.54/8,081.06
  6. Step 6: Final answer
    x = 4,331.01

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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.