Home / 8,312.05-12,467.80-3,380.37

Finding the Fourth Proportional to 8,312.05, 12,467.80 and 3,380.37

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Solution

The fourth proportional to 8,312.05, 12,467.80 and 3,380.37 is: 5,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.05 : 12,467.80 = 3,380.37 : x
  2. Step 2: Convert to fraction form
    8,312.05/12,467.80 = 3,380.37/x
  3. Step 3: Cross multiply
    8,312.05x = 12,467.80 × 3,380.37
  4. Step 4: Simplify right side
    8,312.05x = 42,145,777.09
  5. Step 5: Solve for x
    x = 42,145,777.09/8,312.05
  6. Step 6: Final answer
    x = 5,070.44

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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.