Home / 8,400.42-12,581.48-4,020.98

Finding the Fourth Proportional to 8,400.42, 12,581.48 and 4,020.98

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Solution

The fourth proportional to 8,400.42, 12,581.48 and 4,020.98 is: 6,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.42 : 12,581.48 = 4,020.98 : x
  2. Step 2: Convert to fraction form
    8,400.42/12,581.48 = 4,020.98/x
  3. Step 3: Cross multiply
    8,400.42x = 12,581.48 × 4,020.98
  4. Step 4: Simplify right side
    8,400.42x = 50,589,879.45
  5. Step 5: Solve for x
    x = 50,589,879.45/8,400.42
  6. Step 6: Final answer
    x = 6,022.30

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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.