Home / 8,021.22-12,015.45-4,724.34

Finding the Fourth Proportional to 8,021.22, 12,015.45 and 4,724.34

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Solution

The fourth proportional to 8,021.22, 12,015.45 and 4,724.34 is: 7,076.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.22 : 12,015.45 = 4,724.34 : x
  2. Step 2: Convert to fraction form
    8,021.22/12,015.45 = 4,724.34/x
  3. Step 3: Cross multiply
    8,021.22x = 12,015.45 × 4,724.34
  4. Step 4: Simplify right side
    8,021.22x = 56,765,071.05
  5. Step 5: Solve for x
    x = 56,765,071.05/8,021.22
  6. Step 6: Final answer
    x = 7,076.86

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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.