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Finding the Fourth Proportional to 11,893.53, 17,840.30 and 3,994.55

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Solution

The fourth proportional to 11,893.53, 17,840.30 and 3,994.55 is: 5,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.53 : 17,840.30 = 3,994.55 : x
  2. Step 2: Convert to fraction form
    11,893.53/17,840.30 = 3,994.55/x
  3. Step 3: Cross multiply
    11,893.53x = 17,840.30 × 3,994.55
  4. Step 4: Simplify right side
    11,893.53x = 71,263,861.19
  5. Step 5: Solve for x
    x = 71,263,861.19/11,893.53
  6. Step 6: Final answer
    x = 5,991.82

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1.5x scale

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.