Home / 9,078.44-13,614.78-2,921

Finding the Fourth Proportional to 9,078.44, 13,614.78 and 2,921

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Solution

The fourth proportional to 9,078.44, 13,614.78 and 2,921 is: 4,380.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.44 : 13,614.78 = 2,921 : x
  2. Step 2: Convert to fraction form
    9,078.44/13,614.78 = 2,921/x
  3. Step 3: Cross multiply
    9,078.44x = 13,614.78 × 2,921
  4. Step 4: Simplify right side
    9,078.44x = 39,768,772.38
  5. Step 5: Solve for x
    x = 39,768,772.38/9,078.44
  6. Step 6: Final answer
    x = 4,380.57

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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.