Home / 11,481.51-17,215.80-3,981.56

Finding the Fourth Proportional to 11,481.51, 17,215.80 and 3,981.56

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Solution

The fourth proportional to 11,481.51, 17,215.80 and 3,981.56 is: 5,970.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.51 : 17,215.80 = 3,981.56 : x
  2. Step 2: Convert to fraction form
    11,481.51/17,215.80 = 3,981.56/x
  3. Step 3: Cross multiply
    11,481.51x = 17,215.80 × 3,981.56
  4. Step 4: Simplify right side
    11,481.51x = 68,545,654.57
  5. Step 5: Solve for x
    x = 68,545,654.57/11,481.51
  6. Step 6: Final answer
    x = 5,970.09

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1.5x scale

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.