Home / 8,085.15-12,127.73-2,889.99

Finding the Fourth Proportional to 8,085.15, 12,127.73 and 2,889.99

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Solution

The fourth proportional to 8,085.15, 12,127.73 and 2,889.99 is: 4,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.15 : 12,127.73 = 2,889.99 : x
  2. Step 2: Convert to fraction form
    8,085.15/12,127.73 = 2,889.99/x
  3. Step 3: Cross multiply
    8,085.15x = 12,127.73 × 2,889.99
  4. Step 4: Simplify right side
    8,085.15x = 35,049,003.97
  5. Step 5: Solve for x
    x = 35,049,003.97/8,085.15
  6. Step 6: Final answer
    x = 4,334.99

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Similar ratio
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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.