Home / 8,375.21-12,556.12-4,213.07

Finding the Fourth Proportional to 8,375.21, 12,556.12 and 4,213.07

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Solution

The fourth proportional to 8,375.21, 12,556.12 and 4,213.07 is: 6,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.21 : 12,556.12 = 4,213.07 : x
  2. Step 2: Convert to fraction form
    8,375.21/12,556.12 = 4,213.07/x
  3. Step 3: Cross multiply
    8,375.21x = 12,556.12 × 4,213.07
  4. Step 4: Simplify right side
    8,375.21x = 52,899,812.49
  5. Step 5: Solve for x
    x = 52,899,812.49/8,375.21
  6. Step 6: Final answer
    x = 6,316.24

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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.