Home / 6,853.15-9,456.62-3,868.80

Finding the Fourth Proportional to 6,853.15, 9,456.62 and 3,868.80

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Solution

The fourth proportional to 6,853.15, 9,456.62 and 3,868.80 is: 5,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,853.15 : 9,456.62 = 3,868.80 : x
  2. Step 2: Convert to fraction form
    6,853.15/9,456.62 = 3,868.80/x
  3. Step 3: Cross multiply
    6,853.15x = 9,456.62 × 3,868.80
  4. Step 4: Simplify right side
    6,853.15x = 36,585,771.46
  5. Step 5: Solve for x
    x = 36,585,771.46/6,853.15
  6. Step 6: Final answer
    x = 5,338.53

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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.