Home / 11,918.39-17,876.04-3,153.98

Finding the Fourth Proportional to 11,918.39, 17,876.04 and 3,153.98

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Solution

The fourth proportional to 11,918.39, 17,876.04 and 3,153.98 is: 4,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.39 : 17,876.04 = 3,153.98 : x
  2. Step 2: Convert to fraction form
    11,918.39/17,876.04 = 3,153.98/x
  3. Step 3: Cross multiply
    11,918.39x = 17,876.04 × 3,153.98
  4. Step 4: Simplify right side
    11,918.39x = 56,380,672.64
  5. Step 5: Solve for x
    x = 56,380,672.64/11,918.39
  6. Step 6: Final answer
    x = 4,730.56

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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.