Home / 11,128.25-16,695.23-7,847.75

Finding the Fourth Proportional to 11,128.25, 16,695.23 and 7,847.75

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Solution

The fourth proportional to 11,128.25, 16,695.23 and 7,847.75 is: 11,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.25 : 16,695.23 = 7,847.75 : x
  2. Step 2: Convert to fraction form
    11,128.25/16,695.23 = 7,847.75/x
  3. Step 3: Cross multiply
    11,128.25x = 16,695.23 × 7,847.75
  4. Step 4: Simplify right side
    11,128.25x = 131,019,993.73
  5. Step 5: Solve for x
    x = 131,019,993.73/11,128.25
  6. Step 6: Final answer
    x = 11,773.64

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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.