Home / 9,212.78-13,821.06-3,369.90

Finding the Fourth Proportional to 9,212.78, 13,821.06 and 3,369.90

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Solution

The fourth proportional to 9,212.78, 13,821.06 and 3,369.90 is: 5,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.78 : 13,821.06 = 3,369.90 : x
  2. Step 2: Convert to fraction form
    9,212.78/13,821.06 = 3,369.90/x
  3. Step 3: Cross multiply
    9,212.78x = 13,821.06 × 3,369.90
  4. Step 4: Simplify right side
    9,212.78x = 46,575,590.09
  5. Step 5: Solve for x
    x = 46,575,590.09/9,212.78
  6. Step 6: Final answer
    x = 5,055.54

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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.