Home / 11,120.78-16,682.06-3,725.28

Finding the Fourth Proportional to 11,120.78, 16,682.06 and 3,725.28

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Solution

The fourth proportional to 11,120.78, 16,682.06 and 3,725.28 is: 5,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.78 : 16,682.06 = 3,725.28 : x
  2. Step 2: Convert to fraction form
    11,120.78/16,682.06 = 3,725.28/x
  3. Step 3: Cross multiply
    11,120.78x = 16,682.06 × 3,725.28
  4. Step 4: Simplify right side
    11,120.78x = 62,145,325.85
  5. Step 5: Solve for x
    x = 62,145,325.85/11,120.78
  6. Step 6: Final answer
    x = 5,588.22

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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.