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Finding the Fourth Proportional to 18,017, 27,055.38 and 11,135.24

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Solution

The fourth proportional to 18,017, 27,055.38 and 11,135.24 is: 16,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017 : 27,055.38 = 11,135.24 : x
  2. Step 2: Convert to fraction form
    18,017/27,055.38 = 11,135.24/x
  3. Step 3: Cross multiply
    18,017x = 27,055.38 × 11,135.24
  4. Step 4: Simplify right side
    18,017x = 301,268,149.59
  5. Step 5: Solve for x
    x = 301,268,149.59/18,017
  6. Step 6: Final answer
    x = 16,721.33

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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.