Home / 14,845.55-20,486.82-8,131.18

Finding the Fourth Proportional to 14,845.55, 20,486.82 and 8,131.18

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Solution

The fourth proportional to 14,845.55, 20,486.82 and 8,131.18 is: 11,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,845.55 : 20,486.82 = 8,131.18 : x
  2. Step 2: Convert to fraction form
    14,845.55/20,486.82 = 8,131.18/x
  3. Step 3: Cross multiply
    14,845.55x = 20,486.82 × 8,131.18
  4. Step 4: Simplify right side
    14,845.55x = 166,582,021.05
  5. Step 5: Solve for x
    x = 166,582,021.05/14,845.55
  6. Step 6: Final answer
    x = 11,221.01

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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.