Home / 15,413.44-21,292.32-12,265.60

Finding the Fourth Proportional to 15,413.44, 21,292.32 and 12,265.60

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Solution

The fourth proportional to 15,413.44, 21,292.32 and 12,265.60 is: 16,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.44 : 21,292.32 = 12,265.60 : x
  2. Step 2: Convert to fraction form
    15,413.44/21,292.32 = 12,265.60/x
  3. Step 3: Cross multiply
    15,413.44x = 21,292.32 × 12,265.60
  4. Step 4: Simplify right side
    15,413.44x = 261,163,080.19
  5. Step 5: Solve for x
    x = 261,163,080.19/15,413.44
  6. Step 6: Final answer
    x = 16,943.85

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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.