Home / 12,747.37-19,099.46-7,806.68

Finding the Fourth Proportional to 12,747.37, 19,099.46 and 7,806.68

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Solution

The fourth proportional to 12,747.37, 19,099.46 and 7,806.68 is: 11,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.37 : 19,099.46 = 7,806.68 : x
  2. Step 2: Convert to fraction form
    12,747.37/19,099.46 = 7,806.68/x
  3. Step 3: Cross multiply
    12,747.37x = 19,099.46 × 7,806.68
  4. Step 4: Simplify right side
    12,747.37x = 149,103,333.36
  5. Step 5: Solve for x
    x = 149,103,333.36/12,747.37
  6. Step 6: Final answer
    x = 11,696.80

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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.