Home / 13,272.33-19,905.48-3,912.98

Finding the Fourth Proportional to 13,272.33, 19,905.48 and 3,912.98

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Solution

The fourth proportional to 13,272.33, 19,905.48 and 3,912.98 is: 5,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.33 : 19,905.48 = 3,912.98 : x
  2. Step 2: Convert to fraction form
    13,272.33/19,905.48 = 3,912.98/x
  3. Step 3: Cross multiply
    13,272.33x = 19,905.48 × 3,912.98
  4. Step 4: Simplify right side
    13,272.33x = 77,889,794.89
  5. Step 5: Solve for x
    x = 77,889,794.89/13,272.33
  6. Step 6: Final answer
    x = 5,868.58

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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.