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Finding the Fourth Proportional to 8,111.10, 12,160.99 and 4,154.67

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Solution

The fourth proportional to 8,111.10, 12,160.99 and 4,154.67 is: 6,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.10 : 12,160.99 = 4,154.67 : x
  2. Step 2: Convert to fraction form
    8,111.10/12,160.99 = 4,154.67/x
  3. Step 3: Cross multiply
    8,111.10x = 12,160.99 × 4,154.67
  4. Step 4: Simplify right side
    8,111.10x = 50,524,900.32
  5. Step 5: Solve for x
    x = 50,524,900.32/8,111.10
  6. Step 6: Final answer
    x = 6,229.11

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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.