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Finding the Fourth Proportional to 10,815.21, 14,924.94 and 5,847.21

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Solution

The fourth proportional to 10,815.21, 14,924.94 and 5,847.21 is: 8,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.21 : 14,924.94 = 5,847.21 : x
  2. Step 2: Convert to fraction form
    10,815.21/14,924.94 = 5,847.21/x
  3. Step 3: Cross multiply
    10,815.21x = 14,924.94 × 5,847.21
  4. Step 4: Simplify right side
    10,815.21x = 87,269,258.42
  5. Step 5: Solve for x
    x = 87,269,258.42/10,815.21
  6. Step 6: Final answer
    x = 8,069.12

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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.