Home / 13,935.75-19,231.37-7,648.11

Finding the Fourth Proportional to 13,935.75, 19,231.37 and 7,648.11

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Solution

The fourth proportional to 13,935.75, 19,231.37 and 7,648.11 is: 10,554.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.75 : 19,231.37 = 7,648.11 : x
  2. Step 2: Convert to fraction form
    13,935.75/19,231.37 = 7,648.11/x
  3. Step 3: Cross multiply
    13,935.75x = 19,231.37 × 7,648.11
  4. Step 4: Simplify right side
    13,935.75x = 147,083,594.97
  5. Step 5: Solve for x
    x = 147,083,594.97/13,935.75
  6. Step 6: Final answer
    x = 10,554.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.