Home / 14,608.72-20,161.05-8,321.09

Finding the Fourth Proportional to 14,608.72, 20,161.05 and 8,321.09

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Solution

The fourth proportional to 14,608.72, 20,161.05 and 8,321.09 is: 11,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.72 : 20,161.05 = 8,321.09 : x
  2. Step 2: Convert to fraction form
    14,608.72/20,161.05 = 8,321.09/x
  3. Step 3: Cross multiply
    14,608.72x = 20,161.05 × 8,321.09
  4. Step 4: Simplify right side
    14,608.72x = 167,761,911.54
  5. Step 5: Solve for x
    x = 167,761,911.54/14,608.72
  6. Step 6: Final answer
    x = 11,483.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.