Home / 12,771.27-19,158.39-6,192.72

Finding the Fourth Proportional to 12,771.27, 19,158.39 and 6,192.72

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Solution

The fourth proportional to 12,771.27, 19,158.39 and 6,192.72 is: 9,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.27 : 19,158.39 = 6,192.72 : x
  2. Step 2: Convert to fraction form
    12,771.27/19,158.39 = 6,192.72/x
  3. Step 3: Cross multiply
    12,771.27x = 19,158.39 × 6,192.72
  4. Step 4: Simplify right side
    12,771.27x = 118,642,544.92
  5. Step 5: Solve for x
    x = 118,642,544.92/12,771.27
  6. Step 6: Final answer
    x = 9,289.80

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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.