Home / 8,021.45-12,019.41-3,633.89

Finding the Fourth Proportional to 8,021.45, 12,019.41 and 3,633.89

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Solution

The fourth proportional to 8,021.45, 12,019.41 and 3,633.89 is: 5,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.45 : 12,019.41 = 3,633.89 : x
  2. Step 2: Convert to fraction form
    8,021.45/12,019.41 = 3,633.89/x
  3. Step 3: Cross multiply
    8,021.45x = 12,019.41 × 3,633.89
  4. Step 4: Simplify right side
    8,021.45x = 43,677,153.71
  5. Step 5: Solve for x
    x = 43,677,153.71/8,021.45
  6. Step 6: Final answer
    x = 5,445.05

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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.