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Finding the Fourth Proportional to 15,982.57, 22,058.09 and 8,909.65

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Solution

The fourth proportional to 15,982.57, 22,058.09 and 8,909.65 is: 12,296.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.57 : 22,058.09 = 8,909.65 : x
  2. Step 2: Convert to fraction form
    15,982.57/22,058.09 = 8,909.65/x
  3. Step 3: Cross multiply
    15,982.57x = 22,058.09 × 8,909.65
  4. Step 4: Simplify right side
    15,982.57x = 196,529,861.57
  5. Step 5: Solve for x
    x = 196,529,861.57/15,982.57
  6. Step 6: Final answer
    x = 12,296.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.