Home / 10,490.78-15,732.74-3,469.16

Finding the Fourth Proportional to 10,490.78, 15,732.74 and 3,469.16

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Solution

The fourth proportional to 10,490.78, 15,732.74 and 3,469.16 is: 5,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.78 : 15,732.74 = 3,469.16 : x
  2. Step 2: Convert to fraction form
    10,490.78/15,732.74 = 3,469.16/x
  3. Step 3: Cross multiply
    10,490.78x = 15,732.74 × 3,469.16
  4. Step 4: Simplify right side
    10,490.78x = 54,579,392.30
  5. Step 5: Solve for x
    x = 54,579,392.30/10,490.78
  6. Step 6: Final answer
    x = 5,202.61

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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.