Home / 6,825.28-9,419.80-3,993.52

Finding the Fourth Proportional to 6,825.28, 9,419.80 and 3,993.52

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Solution

The fourth proportional to 6,825.28, 9,419.80 and 3,993.52 is: 5,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,825.28 : 9,419.80 = 3,993.52 : x
  2. Step 2: Convert to fraction form
    6,825.28/9,419.80 = 3,993.52/x
  3. Step 3: Cross multiply
    6,825.28x = 9,419.80 × 3,993.52
  4. Step 4: Simplify right side
    6,825.28x = 37,618,159.70
  5. Step 5: Solve for x
    x = 37,618,159.70/6,825.28
  6. Step 6: Final answer
    x = 5,511.59

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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.