Home / 8,012.68-12,021.62-3,853.02

Finding the Fourth Proportional to 8,012.68, 12,021.62 and 3,853.02

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Solution

The fourth proportional to 8,012.68, 12,021.62 and 3,853.02 is: 5,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,012.68 : 12,021.62 = 3,853.02 : x
  2. Step 2: Convert to fraction form
    8,012.68/12,021.62 = 3,853.02/x
  3. Step 3: Cross multiply
    8,012.68x = 12,021.62 × 3,853.02
  4. Step 4: Simplify right side
    8,012.68x = 46,319,542.29
  5. Step 5: Solve for x
    x = 46,319,542.29/8,012.68
  6. Step 6: Final answer
    x = 5,780.78

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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.