Home / 14,845.56-20,487.24-8,131.47

Finding the Fourth Proportional to 14,845.56, 20,487.24 and 8,131.47

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Solution

The fourth proportional to 14,845.56, 20,487.24 and 8,131.47 is: 11,221.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,845.56 : 20,487.24 = 8,131.47 : x
  2. Step 2: Convert to fraction form
    14,845.56/20,487.24 = 8,131.47/x
  3. Step 3: Cross multiply
    14,845.56x = 20,487.24 × 8,131.47
  4. Step 4: Simplify right side
    14,845.56x = 166,591,377.44
  5. Step 5: Solve for x
    x = 166,591,377.44/14,845.56
  6. Step 6: Final answer
    x = 11,221.63

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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.