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Finding the Fourth Proportional to 18,998.08, 28,498.08 and 5,859.44

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Solution

The fourth proportional to 18,998.08, 28,498.08 and 5,859.44 is: 8,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.08 : 28,498.08 = 5,859.44 : x
  2. Step 2: Convert to fraction form
    18,998.08/28,498.08 = 5,859.44/x
  3. Step 3: Cross multiply
    18,998.08x = 28,498.08 × 5,859.44
  4. Step 4: Simplify right side
    18,998.08x = 166,982,789.88
  5. Step 5: Solve for x
    x = 166,982,789.88/18,998.08
  6. Step 6: Final answer
    x = 8,789.46

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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.