Home / 7,815.33-11,721.74-3,197.25

Finding the Fourth Proportional to 7,815.33, 11,721.74 and 3,197.25

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Solution

The fourth proportional to 7,815.33, 11,721.74 and 3,197.25 is: 4,795.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.33 : 11,721.74 = 3,197.25 : x
  2. Step 2: Convert to fraction form
    7,815.33/11,721.74 = 3,197.25/x
  3. Step 3: Cross multiply
    7,815.33x = 11,721.74 × 3,197.25
  4. Step 4: Simplify right side
    7,815.33x = 37,477,317.23
  5. Step 5: Solve for x
    x = 37,477,317.23/7,815.33
  6. Step 6: Final answer
    x = 4,795.36

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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.