Home / 8,611.77-11,887.23-5,074.75

Finding the Fourth Proportional to 8,611.77, 11,887.23 and 5,074.75

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Solution

The fourth proportional to 8,611.77, 11,887.23 and 5,074.75 is: 7,004.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.77 : 11,887.23 = 5,074.75 : x
  2. Step 2: Convert to fraction form
    8,611.77/11,887.23 = 5,074.75/x
  3. Step 3: Cross multiply
    8,611.77x = 11,887.23 × 5,074.75
  4. Step 4: Simplify right side
    8,611.77x = 60,324,720.44
  5. Step 5: Solve for x
    x = 60,324,720.44/8,611.77
  6. Step 6: Final answer
    x = 7,004.92

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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.