Home / 11,856.57-17,787.96-6,930.42

Finding the Fourth Proportional to 11,856.57, 17,787.96 and 6,930.42

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Solution

The fourth proportional to 11,856.57, 17,787.96 and 6,930.42 is: 10,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.57 : 17,787.96 = 6,930.42 : x
  2. Step 2: Convert to fraction form
    11,856.57/17,787.96 = 6,930.42/x
  3. Step 3: Cross multiply
    11,856.57x = 17,787.96 × 6,930.42
  4. Step 4: Simplify right side
    11,856.57x = 123,278,033.74
  5. Step 5: Solve for x
    x = 123,278,033.74/11,856.57
  6. Step 6: Final answer
    x = 10,397.44

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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.