Home / 18,415.38-25,413.57-10,967.70

Finding the Fourth Proportional to 18,415.38, 25,413.57 and 10,967.70

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Solution

The fourth proportional to 18,415.38, 25,413.57 and 10,967.70 is: 15,135.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.38 : 25,413.57 = 10,967.70 : x
  2. Step 2: Convert to fraction form
    18,415.38/25,413.57 = 10,967.70/x
  3. Step 3: Cross multiply
    18,415.38x = 25,413.57 × 10,967.70
  4. Step 4: Simplify right side
    18,415.38x = 278,728,411.69
  5. Step 5: Solve for x
    x = 278,728,411.69/18,415.38
  6. Step 6: Final answer
    x = 15,135.63

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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.