Home / 13,635.79-20,453.94-4,275.60

Finding the Fourth Proportional to 13,635.79, 20,453.94 and 4,275.60

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Solution

The fourth proportional to 13,635.79, 20,453.94 and 4,275.60 is: 6,413.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.79 : 20,453.94 = 4,275.60 : x
  2. Step 2: Convert to fraction form
    13,635.79/20,453.94 = 4,275.60/x
  3. Step 3: Cross multiply
    13,635.79x = 20,453.94 × 4,275.60
  4. Step 4: Simplify right side
    13,635.79x = 87,452,865.86
  5. Step 5: Solve for x
    x = 87,452,865.86/13,635.79
  6. Step 6: Final answer
    x = 6,413.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.