Home / 8,398.44-11,589.21-4,620.78

Finding the Fourth Proportional to 8,398.44, 11,589.21 and 4,620.78

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Solution

The fourth proportional to 8,398.44, 11,589.21 and 4,620.78 is: 6,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.44 : 11,589.21 = 4,620.78 : x
  2. Step 2: Convert to fraction form
    8,398.44/11,589.21 = 4,620.78/x
  3. Step 3: Cross multiply
    8,398.44x = 11,589.21 × 4,620.78
  4. Step 4: Simplify right side
    8,398.44x = 53,551,189.78
  5. Step 5: Solve for x
    x = 53,551,189.78/8,398.44
  6. Step 6: Final answer
    x = 6,376.33

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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.