Home / 11,890.80-17,839.26-3,570.48

Finding the Fourth Proportional to 11,890.80, 17,839.26 and 3,570.48

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Solution

The fourth proportional to 11,890.80, 17,839.26 and 3,570.48 is: 5,356.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.80 : 17,839.26 = 3,570.48 : x
  2. Step 2: Convert to fraction form
    11,890.80/17,839.26 = 3,570.48/x
  3. Step 3: Cross multiply
    11,890.80x = 17,839.26 × 3,570.48
  4. Step 4: Simplify right side
    11,890.80x = 63,694,721.04
  5. Step 5: Solve for x
    x = 63,694,721.04/11,890.80
  6. Step 6: Final answer
    x = 5,356.64

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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.