Home / 11,852.98-17,782.80-5,190.07

Finding the Fourth Proportional to 11,852.98, 17,782.80 and 5,190.07

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Solution

The fourth proportional to 11,852.98, 17,782.80 and 5,190.07 is: 7,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,852.98 : 17,782.80 = 5,190.07 : x
  2. Step 2: Convert to fraction form
    11,852.98/17,782.80 = 5,190.07/x
  3. Step 3: Cross multiply
    11,852.98x = 17,782.80 × 5,190.07
  4. Step 4: Simplify right side
    11,852.98x = 92,293,976.80
  5. Step 5: Solve for x
    x = 92,293,976.80/11,852.98
  6. Step 6: Final answer
    x = 7,786.56

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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.