Home / 12,734.11-19,115.13-10,118.43

Finding the Fourth Proportional to 12,734.11, 19,115.13 and 10,118.43

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Solution

The fourth proportional to 12,734.11, 19,115.13 and 10,118.43 is: 15,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734.11 : 19,115.13 = 10,118.43 : x
  2. Step 2: Convert to fraction form
    12,734.11/19,115.13 = 10,118.43/x
  3. Step 3: Cross multiply
    12,734.11x = 19,115.13 × 10,118.43
  4. Step 4: Simplify right side
    12,734.11x = 193,415,104.85
  5. Step 5: Solve for x
    x = 193,415,104.85/12,734.11
  6. Step 6: Final answer
    x = 15,188.74

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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.