Home / 8,081.09-12,121.63-2,534.88

Finding the Fourth Proportional to 8,081.09, 12,121.63 and 2,534.88

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Solution

The fourth proportional to 8,081.09, 12,121.63 and 2,534.88 is: 3,802.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.09 : 12,121.63 = 2,534.88 : x
  2. Step 2: Convert to fraction form
    8,081.09/12,121.63 = 2,534.88/x
  3. Step 3: Cross multiply
    8,081.09x = 12,121.63 × 2,534.88
  4. Step 4: Simplify right side
    8,081.09x = 30,726,871.12
  5. Step 5: Solve for x
    x = 30,726,871.12/8,081.09
  6. Step 6: Final answer
    x = 3,802.32

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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.