Home / 8,581.02-12,872.12-2,738.07

Finding the Fourth Proportional to 8,581.02, 12,872.12 and 2,738.07

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Solution

The fourth proportional to 8,581.02, 12,872.12 and 2,738.07 is: 4,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.02 : 12,872.12 = 2,738.07 : x
  2. Step 2: Convert to fraction form
    8,581.02/12,872.12 = 2,738.07/x
  3. Step 3: Cross multiply
    8,581.02x = 12,872.12 × 2,738.07
  4. Step 4: Simplify right side
    8,581.02x = 35,244,751.92
  5. Step 5: Solve for x
    x = 35,244,751.92/8,581.02
  6. Step 6: Final answer
    x = 4,107.29

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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.