Home / 7,735.07-11,613.42-3,990.03

Finding the Fourth Proportional to 7,735.07, 11,613.42 and 3,990.03

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Solution

The fourth proportional to 7,735.07, 11,613.42 and 3,990.03 is: 5,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,735.07 : 11,613.42 = 3,990.03 : x
  2. Step 2: Convert to fraction form
    7,735.07/11,613.42 = 3,990.03/x
  3. Step 3: Cross multiply
    7,735.07x = 11,613.42 × 3,990.03
  4. Step 4: Simplify right side
    7,735.07x = 46,337,894.20
  5. Step 5: Solve for x
    x = 46,337,894.20/7,735.07
  6. Step 6: Final answer
    x = 5,990.63

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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.