Home / 11,721.81-17,582.79-4,796.31

Finding the Fourth Proportional to 11,721.81, 17,582.79 and 4,796.31

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Solution

The fourth proportional to 11,721.81, 17,582.79 and 4,796.31 is: 7,194.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.81 : 17,582.79 = 4,796.31 : x
  2. Step 2: Convert to fraction form
    11,721.81/17,582.79 = 4,796.31/x
  3. Step 3: Cross multiply
    11,721.81x = 17,582.79 × 4,796.31
  4. Step 4: Simplify right side
    11,721.81x = 84,332,511.50
  5. Step 5: Solve for x
    x = 84,332,511.50/11,721.81
  6. Step 6: Final answer
    x = 7,194.50

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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.