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Finding the Fourth Proportional to 14,703.92, 20,286.40 and 8,329.64

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Solution

The fourth proportional to 14,703.92, 20,286.40 and 8,329.64 is: 11,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.92 : 20,286.40 = 8,329.64 : x
  2. Step 2: Convert to fraction form
    14,703.92/20,286.40 = 8,329.64/x
  3. Step 3: Cross multiply
    14,703.92x = 20,286.40 × 8,329.64
  4. Step 4: Simplify right side
    14,703.92x = 168,978,408.90
  5. Step 5: Solve for x
    x = 168,978,408.90/14,703.92
  6. Step 6: Final answer
    x = 11,492.07

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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.