Home / 11,908.46-16,429.89-6,872.02

Finding the Fourth Proportional to 11,908.46, 16,429.89 and 6,872.02

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Solution

The fourth proportional to 11,908.46, 16,429.89 and 6,872.02 is: 9,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,908.46 : 16,429.89 = 6,872.02 : x
  2. Step 2: Convert to fraction form
    11,908.46/16,429.89 = 6,872.02/x
  3. Step 3: Cross multiply
    11,908.46x = 16,429.89 × 6,872.02
  4. Step 4: Simplify right side
    11,908.46x = 112,906,491.60
  5. Step 5: Solve for x
    x = 112,906,491.60/11,908.46
  6. Step 6: Final answer
    x = 9,481.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.