Home / 6,839.12-9,438.99-4,186.10

Finding the Fourth Proportional to 6,839.12, 9,438.99 and 4,186.10

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Solution

The fourth proportional to 6,839.12, 9,438.99 and 4,186.10 is: 5,777.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839.12 : 9,438.99 = 4,186.10 : x
  2. Step 2: Convert to fraction form
    6,839.12/9,438.99 = 4,186.10/x
  3. Step 3: Cross multiply
    6,839.12x = 9,438.99 × 4,186.10
  4. Step 4: Simplify right side
    6,839.12x = 39,512,556.04
  5. Step 5: Solve for x
    x = 39,512,556.04/6,839.12
  6. Step 6: Final answer
    x = 5,777.43

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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.