Home / 11,142.12-16,713.45-3,351

Finding the Fourth Proportional to 11,142.12, 16,713.45 and 3,351

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Solution

The fourth proportional to 11,142.12, 16,713.45 and 3,351 is: 5,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.12 : 16,713.45 = 3,351 : x
  2. Step 2: Convert to fraction form
    11,142.12/16,713.45 = 3,351/x
  3. Step 3: Cross multiply
    11,142.12x = 16,713.45 × 3,351
  4. Step 4: Simplify right side
    11,142.12x = 56,006,770.95
  5. Step 5: Solve for x
    x = 56,006,770.95/11,142.12
  6. Step 6: Final answer
    x = 5,026.58

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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.