Home / 19,146.26-28,738.83-12,108.98

Finding the Fourth Proportional to 19,146.26, 28,738.83 and 12,108.98

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Solution

The fourth proportional to 19,146.26, 28,738.83 and 12,108.98 is: 18,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.26 : 28,738.83 = 12,108.98 : x
  2. Step 2: Convert to fraction form
    19,146.26/28,738.83 = 12,108.98/x
  3. Step 3: Cross multiply
    19,146.26x = 28,738.83 × 12,108.98
  4. Step 4: Simplify right side
    19,146.26x = 347,997,917.69
  5. Step 5: Solve for x
    x = 347,997,917.69/19,146.26
  6. Step 6: Final answer
    x = 18,175.76

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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.