Home / 8,379.06-12,559.68-3,987.24

Finding the Fourth Proportional to 8,379.06, 12,559.68 and 3,987.24

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Solution

The fourth proportional to 8,379.06, 12,559.68 and 3,987.24 is: 5,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.06 : 12,559.68 = 3,987.24 : x
  2. Step 2: Convert to fraction form
    8,379.06/12,559.68 = 3,987.24/x
  3. Step 3: Cross multiply
    8,379.06x = 12,559.68 × 3,987.24
  4. Step 4: Simplify right side
    8,379.06x = 50,078,458.48
  5. Step 5: Solve for x
    x = 50,078,458.48/8,379.06
  6. Step 6: Final answer
    x = 5,976.62

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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.