Home / 11,928.96-17,880.48-5,760

Finding the Fourth Proportional to 11,928.96, 17,880.48 and 5,760

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Solution

The fourth proportional to 11,928.96, 17,880.48 and 5,760 is: 8,633.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.96 : 17,880.48 = 5,760 : x
  2. Step 2: Convert to fraction form
    11,928.96/17,880.48 = 5,760/x
  3. Step 3: Cross multiply
    11,928.96x = 17,880.48 × 5,760
  4. Step 4: Simplify right side
    11,928.96x = 102,991,564.80
  5. Step 5: Solve for x
    x = 102,991,564.80/11,928.96
  6. Step 6: Final answer
    x = 8,633.74

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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.