Home / 13,847.08-20,778.94-4,961.72

Finding the Fourth Proportional to 13,847.08, 20,778.94 and 4,961.72

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Solution

The fourth proportional to 13,847.08, 20,778.94 and 4,961.72 is: 7,445.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.08 : 20,778.94 = 4,961.72 : x
  2. Step 2: Convert to fraction form
    13,847.08/20,778.94 = 4,961.72/x
  3. Step 3: Cross multiply
    13,847.08x = 20,778.94 × 4,961.72
  4. Step 4: Simplify right side
    13,847.08x = 103,099,282.18
  5. Step 5: Solve for x
    x = 103,099,282.18/13,847.08
  6. Step 6: Final answer
    x = 7,445.56

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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.