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Finding the Fourth Proportional to 18,055.72, 27,069.54 and 11,480.68

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Solution

The fourth proportional to 18,055.72, 27,069.54 and 11,480.68 is: 17,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.72 : 27,069.54 = 11,480.68 : x
  2. Step 2: Convert to fraction form
    18,055.72/27,069.54 = 11,480.68/x
  3. Step 3: Cross multiply
    18,055.72x = 27,069.54 × 11,480.68
  4. Step 4: Simplify right side
    18,055.72x = 310,776,726.49
  5. Step 5: Solve for x
    x = 310,776,726.49/18,055.72
  6. Step 6: Final answer
    x = 17,212.09

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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.