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Finding the Fourth Proportional to 18,612.08, 27,924.60 and 8,758.88

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Solution

The fourth proportional to 18,612.08, 27,924.60 and 8,758.88 is: 13,141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.08 : 27,924.60 = 8,758.88 : x
  2. Step 2: Convert to fraction form
    18,612.08/27,924.60 = 8,758.88/x
  3. Step 3: Cross multiply
    18,612.08x = 27,924.60 × 8,758.88
  4. Step 4: Simplify right side
    18,612.08x = 244,588,220.45
  5. Step 5: Solve for x
    x = 244,588,220.45/18,612.08
  6. Step 6: Final answer
    x = 13,141.37

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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.