Home / 11,825.82-16,316.37-6,789.78

Finding the Fourth Proportional to 11,825.82, 16,316.37 and 6,789.78

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Solution

The fourth proportional to 11,825.82, 16,316.37 and 6,789.78 is: 9,368.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.82 : 16,316.37 = 6,789.78 : x
  2. Step 2: Convert to fraction form
    11,825.82/16,316.37 = 6,789.78/x
  3. Step 3: Cross multiply
    11,825.82x = 16,316.37 × 6,789.78
  4. Step 4: Simplify right side
    11,825.82x = 110,784,562.70
  5. Step 5: Solve for x
    x = 110,784,562.70/11,825.82
  6. Step 6: Final answer
    x = 9,368.02

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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.