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Finding the Fourth Proportional to 10,887.50, 16,330.34 and 3,489.98

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Solution

The fourth proportional to 10,887.50, 16,330.34 and 3,489.98 is: 5,234.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.50 : 16,330.34 = 3,489.98 : x
  2. Step 2: Convert to fraction form
    10,887.50/16,330.34 = 3,489.98/x
  3. Step 3: Cross multiply
    10,887.50x = 16,330.34 × 3,489.98
  4. Step 4: Simplify right side
    10,887.50x = 56,992,487.07
  5. Step 5: Solve for x
    x = 56,992,487.07/10,887.50
  6. Step 6: Final answer
    x = 5,234.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.