Home / 15,334.86-21,162.94-8,529.60

Finding the Fourth Proportional to 15,334.86, 21,162.94 and 8,529.60

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Solution

The fourth proportional to 15,334.86, 21,162.94 and 8,529.60 is: 11,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.86 : 21,162.94 = 8,529.60 : x
  2. Step 2: Convert to fraction form
    15,334.86/21,162.94 = 8,529.60/x
  3. Step 3: Cross multiply
    15,334.86x = 21,162.94 × 8,529.60
  4. Step 4: Simplify right side
    15,334.86x = 180,511,413.02
  5. Step 5: Solve for x
    x = 180,511,413.02/15,334.86
  6. Step 6: Final answer
    x = 11,771.31

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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.