Home / 11,823-17,734.50-3,615

Finding the Fourth Proportional to 11,823, 17,734.50 and 3,615

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Solution

The fourth proportional to 11,823, 17,734.50 and 3,615 is: 5,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823 : 17,734.50 = 3,615 : x
  2. Step 2: Convert to fraction form
    11,823/17,734.50 = 3,615/x
  3. Step 3: Cross multiply
    11,823x = 17,734.50 × 3,615
  4. Step 4: Simplify right side
    11,823x = 64,110,217.50
  5. Step 5: Solve for x
    x = 64,110,217.50/11,823
  6. Step 6: Final answer
    x = 5,422.50

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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.