Home / 12,099.18-18,149.91-4,704.21

Finding the Fourth Proportional to 12,099.18, 18,149.91 and 4,704.21

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Solution

The fourth proportional to 12,099.18, 18,149.91 and 4,704.21 is: 7,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.18 : 18,149.91 = 4,704.21 : x
  2. Step 2: Convert to fraction form
    12,099.18/18,149.91 = 4,704.21/x
  3. Step 3: Cross multiply
    12,099.18x = 18,149.91 × 4,704.21
  4. Step 4: Simplify right side
    12,099.18x = 85,380,988.12
  5. Step 5: Solve for x
    x = 85,380,988.12/12,099.18
  6. Step 6: Final answer
    x = 7,056.76

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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.