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Finding the Fourth Proportional to 18,093.83, 27,138.59 and 7,708.55

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Solution

The fourth proportional to 18,093.83, 27,138.59 and 7,708.55 is: 11,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093.83 : 27,138.59 = 7,708.55 : x
  2. Step 2: Convert to fraction form
    18,093.83/27,138.59 = 7,708.55/x
  3. Step 3: Cross multiply
    18,093.83x = 27,138.59 × 7,708.55
  4. Step 4: Simplify right side
    18,093.83x = 209,199,139.40
  5. Step 5: Solve for x
    x = 209,199,139.40/18,093.83
  6. Step 6: Final answer
    x = 11,561.90

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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.