Home / 6,825.11-9,418.55-3,840.71

Finding the Fourth Proportional to 6,825.11, 9,418.55 and 3,840.71

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Solution

The fourth proportional to 6,825.11, 9,418.55 and 3,840.71 is: 5,300.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,825.11 : 9,418.55 = 3,840.71 : x
  2. Step 2: Convert to fraction form
    6,825.11/9,418.55 = 3,840.71/x
  3. Step 3: Cross multiply
    6,825.11x = 9,418.55 × 3,840.71
  4. Step 4: Simplify right side
    6,825.11x = 36,173,852.87
  5. Step 5: Solve for x
    x = 36,173,852.87/6,825.11
  6. Step 6: Final answer
    x = 5,300.12

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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.