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Finding the Fourth Proportional to 14,855.76, 20,499.35 and 8,481.75

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Solution

The fourth proportional to 14,855.76, 20,499.35 and 8,481.75 is: 11,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.76 : 20,499.35 = 8,481.75 : x
  2. Step 2: Convert to fraction form
    14,855.76/20,499.35 = 8,481.75/x
  3. Step 3: Cross multiply
    14,855.76x = 20,499.35 × 8,481.75
  4. Step 4: Simplify right side
    14,855.76x = 173,870,319.45
  5. Step 5: Solve for x
    x = 173,870,319.45/14,855.76
  6. Step 6: Final answer
    x = 11,703.90

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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.