Home / 18,436.20-27,664.02-11,055.48

Finding the Fourth Proportional to 18,436.20, 27,664.02 and 11,055.48

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Solution

The fourth proportional to 18,436.20, 27,664.02 and 11,055.48 is: 16,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.20 : 27,664.02 = 11,055.48 : x
  2. Step 2: Convert to fraction form
    18,436.20/27,664.02 = 11,055.48/x
  3. Step 3: Cross multiply
    18,436.20x = 27,664.02 × 11,055.48
  4. Step 4: Simplify right side
    18,436.20x = 305,839,019.83
  5. Step 5: Solve for x
    x = 305,839,019.83/18,436.20
  6. Step 6: Final answer
    x = 16,589.05

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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.