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Finding the Fourth Proportional to 14,806.56, 20,435.20 and 8,518.88

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Solution

The fourth proportional to 14,806.56, 20,435.20 and 8,518.88 is: 11,757.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,806.56 : 20,435.20 = 8,518.88 : x
  2. Step 2: Convert to fraction form
    14,806.56/20,435.20 = 8,518.88/x
  3. Step 3: Cross multiply
    14,806.56x = 20,435.20 × 8,518.88
  4. Step 4: Simplify right side
    14,806.56x = 174,085,016.58
  5. Step 5: Solve for x
    x = 174,085,016.58/14,806.56
  6. Step 6: Final answer
    x = 11,757.29

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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.