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Finding the Fourth Proportional to 18,993.23, 28,467.10 and 8,847.93

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Solution

The fourth proportional to 18,993.23, 28,467.10 and 8,847.93 is: 13,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.23 : 28,467.10 = 8,847.93 : x
  2. Step 2: Convert to fraction form
    18,993.23/28,467.10 = 8,847.93/x
  3. Step 3: Cross multiply
    18,993.23x = 28,467.10 × 8,847.93
  4. Step 4: Simplify right side
    18,993.23x = 251,874,976.14
  5. Step 5: Solve for x
    x = 251,874,976.14/18,993.23
  6. Step 6: Final answer
    x = 13,261.30

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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.