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Finding the Fourth Proportional to 14,914.99, 20,582.81 and 8,200.43

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Solution

The fourth proportional to 14,914.99, 20,582.81 and 8,200.43 is: 11,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,914.99 : 20,582.81 = 8,200.43 : x
  2. Step 2: Convert to fraction form
    14,914.99/20,582.81 = 8,200.43/x
  3. Step 3: Cross multiply
    14,914.99x = 20,582.81 × 8,200.43
  4. Step 4: Simplify right side
    14,914.99x = 168,787,892.61
  5. Step 5: Solve for x
    x = 168,787,892.61/14,914.99
  6. Step 6: Final answer
    x = 11,316.66

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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.