Home / 19,379.46-26,751.78-13,100.34

Finding the Fourth Proportional to 19,379.46, 26,751.78 and 13,100.34

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Solution

The fourth proportional to 19,379.46, 26,751.78 and 13,100.34 is: 18,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.46 : 26,751.78 = 13,100.34 : x
  2. Step 2: Convert to fraction form
    19,379.46/26,751.78 = 13,100.34/x
  3. Step 3: Cross multiply
    19,379.46x = 26,751.78 × 13,100.34
  4. Step 4: Simplify right side
    19,379.46x = 350,457,413.61
  5. Step 5: Solve for x
    x = 350,457,413.61/19,379.46
  6. Step 6: Final answer
    x = 18,083.96

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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.