Home / 11,713.25-17,572.31-4,787.75

Finding the Fourth Proportional to 11,713.25, 17,572.31 and 4,787.75

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Solution

The fourth proportional to 11,713.25, 17,572.31 and 4,787.75 is: 7,182.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.25 : 17,572.31 = 4,787.75 : x
  2. Step 2: Convert to fraction form
    11,713.25/17,572.31 = 4,787.75/x
  3. Step 3: Cross multiply
    11,713.25x = 17,572.31 × 4,787.75
  4. Step 4: Simplify right side
    11,713.25x = 84,131,803.26
  5. Step 5: Solve for x
    x = 84,131,803.26/11,713.25
  6. Step 6: Final answer
    x = 7,182.62

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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.