Home / 8,212.16-12,317.21-2,289.50

Finding the Fourth Proportional to 8,212.16, 12,317.21 and 2,289.50

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Solution

The fourth proportional to 8,212.16, 12,317.21 and 2,289.50 is: 3,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.16 : 12,317.21 = 2,289.50 : x
  2. Step 2: Convert to fraction form
    8,212.16/12,317.21 = 2,289.50/x
  3. Step 3: Cross multiply
    8,212.16x = 12,317.21 × 2,289.50
  4. Step 4: Simplify right side
    8,212.16x = 28,200,179.26
  5. Step 5: Solve for x
    x = 28,200,179.26/8,212.16
  6. Step 6: Final answer
    x = 3,433.96

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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.