Home / 13,274.10-19,911.87-3,413.46

Finding the Fourth Proportional to 13,274.10, 19,911.87 and 3,413.46

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Solution

The fourth proportional to 13,274.10, 19,911.87 and 3,413.46 is: 5,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.10 : 19,911.87 = 3,413.46 : x
  2. Step 2: Convert to fraction form
    13,274.10/19,911.87 = 3,413.46/x
  3. Step 3: Cross multiply
    13,274.10x = 19,911.87 × 3,413.46
  4. Step 4: Simplify right side
    13,274.10x = 67,968,371.77
  5. Step 5: Solve for x
    x = 67,968,371.77/13,274.10
  6. Step 6: Final answer
    x = 5,120.38

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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.