Home / 6,965.15-9,611.96-3,899.03

Finding the Fourth Proportional to 6,965.15, 9,611.96 and 3,899.03

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Solution

The fourth proportional to 6,965.15, 9,611.96 and 3,899.03 is: 5,380.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,965.15 : 9,611.96 = 3,899.03 : x
  2. Step 2: Convert to fraction form
    6,965.15/9,611.96 = 3,899.03/x
  3. Step 3: Cross multiply
    6,965.15x = 9,611.96 × 3,899.03
  4. Step 4: Simplify right side
    6,965.15x = 37,477,252.84
  5. Step 5: Solve for x
    x = 37,477,252.84/6,965.15
  6. Step 6: Final answer
    x = 5,380.69

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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.