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Finding the Fourth Proportional to 11,253.78, 16,880.69 and 2,933.78

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Solution

The fourth proportional to 11,253.78, 16,880.69 and 2,933.78 is: 4,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.78 : 16,880.69 = 2,933.78 : x
  2. Step 2: Convert to fraction form
    11,253.78/16,880.69 = 2,933.78/x
  3. Step 3: Cross multiply
    11,253.78x = 16,880.69 × 2,933.78
  4. Step 4: Simplify right side
    11,253.78x = 49,524,131.64
  5. Step 5: Solve for x
    x = 49,524,131.64/11,253.78
  6. Step 6: Final answer
    x = 4,400.67

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1.5x scale

Why These Related Problems?

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