Home / 11,787.27-17,680.68-4,767.20

Finding the Fourth Proportional to 11,787.27, 17,680.68 and 4,767.20

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Solution

The fourth proportional to 11,787.27, 17,680.68 and 4,767.20 is: 7,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.27 : 17,680.68 = 4,767.20 : x
  2. Step 2: Convert to fraction form
    11,787.27/17,680.68 = 4,767.20/x
  3. Step 3: Cross multiply
    11,787.27x = 17,680.68 × 4,767.20
  4. Step 4: Simplify right side
    11,787.27x = 84,287,249.29
  5. Step 5: Solve for x
    x = 84,287,249.29/11,787.27
  6. Step 6: Final answer
    x = 7,150.70

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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.