Home / 8,074.98-12,113.63-3,911.57

Finding the Fourth Proportional to 8,074.98, 12,113.63 and 3,911.57

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Solution

The fourth proportional to 8,074.98, 12,113.63 and 3,911.57 is: 5,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.98 : 12,113.63 = 3,911.57 : x
  2. Step 2: Convert to fraction form
    8,074.98/12,113.63 = 3,911.57/x
  3. Step 3: Cross multiply
    8,074.98x = 12,113.63 × 3,911.57
  4. Step 4: Simplify right side
    8,074.98x = 47,383,231.57
  5. Step 5: Solve for x
    x = 47,383,231.57/8,074.98
  6. Step 6: Final answer
    x = 5,867.91

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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.