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Finding the Fourth Proportional to 18,137.06, 27,199.42 and 6,288.06

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Solution

The fourth proportional to 18,137.06, 27,199.42 and 6,288.06 is: 9,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137.06 : 27,199.42 = 6,288.06 : x
  2. Step 2: Convert to fraction form
    18,137.06/27,199.42 = 6,288.06/x
  3. Step 3: Cross multiply
    18,137.06x = 27,199.42 × 6,288.06
  4. Step 4: Simplify right side
    18,137.06x = 171,031,584.93
  5. Step 5: Solve for x
    x = 171,031,584.93/18,137.06
  6. Step 6: Final answer
    x = 9,429.95

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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.