Home / 8,380.56-11,561.48-5,723.60

Finding the Fourth Proportional to 8,380.56, 11,561.48 and 5,723.60

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Solution

The fourth proportional to 8,380.56, 11,561.48 and 5,723.60 is: 7,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.56 : 11,561.48 = 5,723.60 : x
  2. Step 2: Convert to fraction form
    8,380.56/11,561.48 = 5,723.60/x
  3. Step 3: Cross multiply
    8,380.56x = 11,561.48 × 5,723.60
  4. Step 4: Simplify right side
    8,380.56x = 66,173,286.93
  5. Step 5: Solve for x
    x = 66,173,286.93/8,380.56
  6. Step 6: Final answer
    x = 7,896.05

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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.