Home / 8,221.41-12,333.96-2,378.48

Finding the Fourth Proportional to 8,221.41, 12,333.96 and 2,378.48

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Solution

The fourth proportional to 8,221.41, 12,333.96 and 2,378.48 is: 3,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.41 : 12,333.96 = 2,378.48 : x
  2. Step 2: Convert to fraction form
    8,221.41/12,333.96 = 2,378.48/x
  3. Step 3: Cross multiply
    8,221.41x = 12,333.96 × 2,378.48
  4. Step 4: Simplify right side
    8,221.41x = 29,336,015.51
  5. Step 5: Solve for x
    x = 29,336,015.51/8,221.41
  6. Step 6: Final answer
    x = 3,568.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.