Home / 11,717.78-17,576.58-4,787.42

Finding the Fourth Proportional to 11,717.78, 17,576.58 and 4,787.42

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Solution

The fourth proportional to 11,717.78, 17,576.58 and 4,787.42 is: 7,181.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.78 : 17,576.58 = 4,787.42 : x
  2. Step 2: Convert to fraction form
    11,717.78/17,576.58 = 4,787.42/x
  3. Step 3: Cross multiply
    11,717.78x = 17,576.58 × 4,787.42
  4. Step 4: Simplify right side
    11,717.78x = 84,146,470.62
  5. Step 5: Solve for x
    x = 84,146,470.62/11,717.78
  6. Step 6: Final answer
    x = 7,181.09

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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.