Home / 14,845.74-20,486.94-8,131.50

Finding the Fourth Proportional to 14,845.74, 20,486.94 and 8,131.50

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Solution

The fourth proportional to 14,845.74, 20,486.94 and 8,131.50 is: 11,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,845.74 : 20,486.94 = 8,131.50 : x
  2. Step 2: Convert to fraction form
    14,845.74/20,486.94 = 8,131.50/x
  3. Step 3: Cross multiply
    14,845.74x = 20,486.94 × 8,131.50
  4. Step 4: Simplify right side
    14,845.74x = 166,589,552.61
  5. Step 5: Solve for x
    x = 166,589,552.61/14,845.74
  6. Step 6: Final answer
    x = 11,221.37

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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.