Home / 8,129.21-12,194.27-2,582.15

Finding the Fourth Proportional to 8,129.21, 12,194.27 and 2,582.15

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Solution

The fourth proportional to 8,129.21, 12,194.27 and 2,582.15 is: 3,873.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.21 : 12,194.27 = 2,582.15 : x
  2. Step 2: Convert to fraction form
    8,129.21/12,194.27 = 2,582.15/x
  3. Step 3: Cross multiply
    8,129.21x = 12,194.27 × 2,582.15
  4. Step 4: Simplify right side
    8,129.21x = 31,487,421.37
  5. Step 5: Solve for x
    x = 31,487,421.37/8,129.21
  6. Step 6: Final answer
    x = 3,873.37

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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.