Home / 12,747.23-19,099.27-7,806.55

Finding the Fourth Proportional to 12,747.23, 19,099.27 and 7,806.55

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Solution

The fourth proportional to 12,747.23, 19,099.27 and 7,806.55 is: 11,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.23 : 19,099.27 = 7,806.55 : x
  2. Step 2: Convert to fraction form
    12,747.23/19,099.27 = 7,806.55/x
  3. Step 3: Cross multiply
    12,747.23x = 19,099.27 × 7,806.55
  4. Step 4: Simplify right side
    12,747.23x = 149,099,406.22
  5. Step 5: Solve for x
    x = 149,099,406.22/12,747.23
  6. Step 6: Final answer
    x = 11,696.61

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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.