Home / 7,872.66-11,811.69-2,682.18

Finding the Fourth Proportional to 7,872.66, 11,811.69 and 2,682.18

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Solution

The fourth proportional to 7,872.66, 11,811.69 and 2,682.18 is: 4,024.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.66 : 11,811.69 = 2,682.18 : x
  2. Step 2: Convert to fraction form
    7,872.66/11,811.69 = 2,682.18/x
  3. Step 3: Cross multiply
    7,872.66x = 11,811.69 × 2,682.18
  4. Step 4: Simplify right side
    7,872.66x = 31,681,078.68
  5. Step 5: Solve for x
    x = 31,681,078.68/7,872.66
  6. Step 6: Final answer
    x = 4,024.19

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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.