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Finding the Fourth Proportional to 18,009.39, 27,013.10 and 5,529.41

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Solution

The fourth proportional to 18,009.39, 27,013.10 and 5,529.41 is: 8,293.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.39 : 27,013.10 = 5,529.41 : x
  2. Step 2: Convert to fraction form
    18,009.39/27,013.10 = 5,529.41/x
  3. Step 3: Cross multiply
    18,009.39x = 27,013.10 × 5,529.41
  4. Step 4: Simplify right side
    18,009.39x = 149,366,477.62
  5. Step 5: Solve for x
    x = 149,366,477.62/18,009.39
  6. Step 6: Final answer
    x = 8,293.81

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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.