Home / 13,413.72-20,241.21-12,950.40

Finding the Fourth Proportional to 13,413.72, 20,241.21 and 12,950.40

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Solution

The fourth proportional to 13,413.72, 20,241.21 and 12,950.40 is: 19,542.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.72 : 20,241.21 = 12,950.40 : x
  2. Step 2: Convert to fraction form
    13,413.72/20,241.21 = 12,950.40/x
  3. Step 3: Cross multiply
    13,413.72x = 20,241.21 × 12,950.40
  4. Step 4: Simplify right side
    13,413.72x = 262,131,765.98
  5. Step 5: Solve for x
    x = 262,131,765.98/13,413.72
  6. Step 6: Final answer
    x = 19,542.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.