Home / 9,214.34-13,821.45-2,640.54

Finding the Fourth Proportional to 9,214.34, 13,821.45 and 2,640.54

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Solution

The fourth proportional to 9,214.34, 13,821.45 and 2,640.54 is: 3,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,214.34 : 13,821.45 = 2,640.54 : x
  2. Step 2: Convert to fraction form
    9,214.34/13,821.45 = 2,640.54/x
  3. Step 3: Cross multiply
    9,214.34x = 13,821.45 × 2,640.54
  4. Step 4: Simplify right side
    9,214.34x = 36,496,091.58
  5. Step 5: Solve for x
    x = 36,496,091.58/9,214.34
  6. Step 6: Final answer
    x = 3,960.79

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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.