Home / 11,140.64-16,709.68-2,933.28

Finding the Fourth Proportional to 11,140.64, 16,709.68 and 2,933.28

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Solution

The fourth proportional to 11,140.64, 16,709.68 and 2,933.28 is: 4,399.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.64 : 16,709.68 = 2,933.28 : x
  2. Step 2: Convert to fraction form
    11,140.64/16,709.68 = 2,933.28/x
  3. Step 3: Cross multiply
    11,140.64x = 16,709.68 × 2,933.28
  4. Step 4: Simplify right side
    11,140.64x = 49,014,170.15
  5. Step 5: Solve for x
    x = 49,014,170.15/11,140.64
  6. Step 6: Final answer
    x = 4,399.58

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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.