Home / 11,161.90-16,747.21-4,917.52

Finding the Fourth Proportional to 11,161.90, 16,747.21 and 4,917.52

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Solution

The fourth proportional to 11,161.90, 16,747.21 and 4,917.52 is: 7,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.90 : 16,747.21 = 4,917.52 : x
  2. Step 2: Convert to fraction form
    11,161.90/16,747.21 = 4,917.52/x
  3. Step 3: Cross multiply
    11,161.90x = 16,747.21 × 4,917.52
  4. Step 4: Simplify right side
    11,161.90x = 82,354,767.20
  5. Step 5: Solve for x
    x = 82,354,767.20/11,161.90
  6. Step 6: Final answer
    x = 7,378.20

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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.