Home / 8,367.12-12,544.52-3,987.65

Finding the Fourth Proportional to 8,367.12, 12,544.52 and 3,987.65

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Solution

The fourth proportional to 8,367.12, 12,544.52 and 3,987.65 is: 5,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.12 : 12,544.52 = 3,987.65 : x
  2. Step 2: Convert to fraction form
    8,367.12/12,544.52 = 3,987.65/x
  3. Step 3: Cross multiply
    8,367.12x = 12,544.52 × 3,987.65
  4. Step 4: Simplify right side
    8,367.12x = 50,023,157.55
  5. Step 5: Solve for x
    x = 50,023,157.55/8,367.12
  6. Step 6: Final answer
    x = 5,978.54

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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.