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Finding the Fourth Proportional to 12,505.44, 18,851.84 and 11,659.84

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Solution

The fourth proportional to 12,505.44, 18,851.84 and 11,659.84 is: 17,577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.44 : 18,851.84 = 11,659.84 : x
  2. Step 2: Convert to fraction form
    12,505.44/18,851.84 = 11,659.84/x
  3. Step 3: Cross multiply
    12,505.44x = 18,851.84 × 11,659.84
  4. Step 4: Simplify right side
    12,505.44x = 219,809,438.11
  5. Step 5: Solve for x
    x = 219,809,438.11/12,505.44
  6. Step 6: Final answer
    x = 17,577.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.