Home / 13,906.08-19,190.28-7,618.44

Finding the Fourth Proportional to 13,906.08, 19,190.28 and 7,618.44

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Solution

The fourth proportional to 13,906.08, 19,190.28 and 7,618.44 is: 10,513.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.08 : 19,190.28 = 7,618.44 : x
  2. Step 2: Convert to fraction form
    13,906.08/19,190.28 = 7,618.44/x
  3. Step 3: Cross multiply
    13,906.08x = 19,190.28 × 7,618.44
  4. Step 4: Simplify right side
    13,906.08x = 146,199,996.76
  5. Step 5: Solve for x
    x = 146,199,996.76/13,906.08
  6. Step 6: Final answer
    x = 10,513.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.