Home / 6,789.60-9,370.80-3,996.48

Finding the Fourth Proportional to 6,789.60, 9,370.80 and 3,996.48

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Solution

The fourth proportional to 6,789.60, 9,370.80 and 3,996.48 is: 5,515.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789.60 : 9,370.80 = 3,996.48 : x
  2. Step 2: Convert to fraction form
    6,789.60/9,370.80 = 3,996.48/x
  3. Step 3: Cross multiply
    6,789.60x = 9,370.80 × 3,996.48
  4. Step 4: Simplify right side
    6,789.60x = 37,450,214.78
  5. Step 5: Solve for x
    x = 37,450,214.78/6,789.60
  6. Step 6: Final answer
    x = 5,515.82

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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.