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Finding the Fourth Proportional to 14,989.05, 20,684.00 and 8,274.51

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Solution

The fourth proportional to 14,989.05, 20,684.00 and 8,274.51 is: 11,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.05 : 20,684.00 = 8,274.51 : x
  2. Step 2: Convert to fraction form
    14,989.05/20,684.00 = 8,274.51/x
  3. Step 3: Cross multiply
    14,989.05x = 20,684.00 × 8,274.51
  4. Step 4: Simplify right side
    14,989.05x = 171,149,923.47
  5. Step 5: Solve for x
    x = 171,149,923.47/14,989.05
  6. Step 6: Final answer
    x = 11,418.33

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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.