Home / 11,975.31-17,963.10-3,657.42

Finding the Fourth Proportional to 11,975.31, 17,963.10 and 3,657.42

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Solution

The fourth proportional to 11,975.31, 17,963.10 and 3,657.42 is: 5,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.31 : 17,963.10 = 3,657.42 : x
  2. Step 2: Convert to fraction form
    11,975.31/17,963.10 = 3,657.42/x
  3. Step 3: Cross multiply
    11,975.31x = 17,963.10 × 3,657.42
  4. Step 4: Simplify right side
    11,975.31x = 65,698,601.20
  5. Step 5: Solve for x
    x = 65,698,601.20/11,975.31
  6. Step 6: Final answer
    x = 5,486.17

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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.