Home / 13,381.79-18,467.38-7,413.33

Finding the Fourth Proportional to 13,381.79, 18,467.38 and 7,413.33

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Solution

The fourth proportional to 13,381.79, 18,467.38 and 7,413.33 is: 10,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.79 : 18,467.38 = 7,413.33 : x
  2. Step 2: Convert to fraction form
    13,381.79/18,467.38 = 7,413.33/x
  3. Step 3: Cross multiply
    13,381.79x = 18,467.38 × 7,413.33
  4. Step 4: Simplify right side
    13,381.79x = 136,904,782.18
  5. Step 5: Solve for x
    x = 136,904,782.18/13,381.79
  6. Step 6: Final answer
    x = 10,230.68

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1.5x scale

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.