Home / 13,635.89-20,454.08-4,275.70

Finding the Fourth Proportional to 13,635.89, 20,454.08 and 4,275.70

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Solution

The fourth proportional to 13,635.89, 20,454.08 and 4,275.70 is: 6,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.89 : 20,454.08 = 4,275.70 : x
  2. Step 2: Convert to fraction form
    13,635.89/20,454.08 = 4,275.70/x
  3. Step 3: Cross multiply
    13,635.89x = 20,454.08 × 4,275.70
  4. Step 4: Simplify right side
    13,635.89x = 87,455,469.41
  5. Step 5: Solve for x
    x = 87,455,469.41/13,635.89
  6. Step 6: Final answer
    x = 6,413.63

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1.5x scale

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.