Home / 7,694.88-11,538.66-3,993.40

Finding the Fourth Proportional to 7,694.88, 11,538.66 and 3,993.40

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Solution

The fourth proportional to 7,694.88, 11,538.66 and 3,993.40 is: 5,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,694.88 : 11,538.66 = 3,993.40 : x
  2. Step 2: Convert to fraction form
    7,694.88/11,538.66 = 3,993.40/x
  3. Step 3: Cross multiply
    7,694.88x = 11,538.66 × 3,993.40
  4. Step 4: Simplify right side
    7,694.88x = 46,078,484.84
  5. Step 5: Solve for x
    x = 46,078,484.84/7,694.88
  6. Step 6: Final answer
    x = 5,988.20

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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.