Home / 8,223.21-12,339.72-4,327.92

Finding the Fourth Proportional to 8,223.21, 12,339.72 and 4,327.92

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Solution

The fourth proportional to 8,223.21, 12,339.72 and 4,327.92 is: 6,494.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223.21 : 12,339.72 = 4,327.92 : x
  2. Step 2: Convert to fraction form
    8,223.21/12,339.72 = 4,327.92/x
  3. Step 3: Cross multiply
    8,223.21x = 12,339.72 × 4,327.92
  4. Step 4: Simplify right side
    8,223.21x = 53,405,320.98
  5. Step 5: Solve for x
    x = 53,405,320.98/8,223.21
  6. Step 6: Final answer
    x = 6,494.46

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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.