Home / 8,109.10-12,157.99-4,152.67

Finding the Fourth Proportional to 8,109.10, 12,157.99 and 4,152.67

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Solution

The fourth proportional to 8,109.10, 12,157.99 and 4,152.67 is: 6,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.10 : 12,157.99 = 4,152.67 : x
  2. Step 2: Convert to fraction form
    8,109.10/12,157.99 = 4,152.67/x
  3. Step 3: Cross multiply
    8,109.10x = 12,157.99 × 4,152.67
  4. Step 4: Simplify right side
    8,109.10x = 50,488,120.33
  5. Step 5: Solve for x
    x = 50,488,120.33/8,109.10
  6. Step 6: Final answer
    x = 6,226.11

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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.