Home / 9,198.23-12,690.27-6,174.09

Finding the Fourth Proportional to 9,198.23, 12,690.27 and 6,174.09

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Solution

The fourth proportional to 9,198.23, 12,690.27 and 6,174.09 is: 8,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.23 : 12,690.27 = 6,174.09 : x
  2. Step 2: Convert to fraction form
    9,198.23/12,690.27 = 6,174.09/x
  3. Step 3: Cross multiply
    9,198.23x = 12,690.27 × 6,174.09
  4. Step 4: Simplify right side
    9,198.23x = 78,350,838.23
  5. Step 5: Solve for x
    x = 78,350,838.23/9,198.23
  6. Step 6: Final answer
    x = 8,518.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.