Home / 18,131.04-27,203.48-11,806.05

Finding the Fourth Proportional to 18,131.04, 27,203.48 and 11,806.05

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Solution

The fourth proportional to 18,131.04, 27,203.48 and 11,806.05 is: 17,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.04 : 27,203.48 = 11,806.05 : x
  2. Step 2: Convert to fraction form
    18,131.04/27,203.48 = 11,806.05/x
  3. Step 3: Cross multiply
    18,131.04x = 27,203.48 × 11,806.05
  4. Step 4: Simplify right side
    18,131.04x = 321,165,718.98
  5. Step 5: Solve for x
    x = 321,165,718.98/18,131.04
  6. Step 6: Final answer
    x = 17,713.58

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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.