Home / 12,469.38-18,704.04-7,271.61

Finding the Fourth Proportional to 12,469.38, 18,704.04 and 7,271.61

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Solution

The fourth proportional to 12,469.38, 18,704.04 and 7,271.61 is: 10,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.38 : 18,704.04 = 7,271.61 : x
  2. Step 2: Convert to fraction form
    12,469.38/18,704.04 = 7,271.61/x
  3. Step 3: Cross multiply
    12,469.38x = 18,704.04 × 7,271.61
  4. Step 4: Simplify right side
    12,469.38x = 136,008,484.30
  5. Step 5: Solve for x
    x = 136,008,484.30/12,469.38
  6. Step 6: Final answer
    x = 10,907.40

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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.