Home / 12,747.36-19,099.45-7,806.68

Finding the Fourth Proportional to 12,747.36, 19,099.45 and 7,806.68

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Solution

The fourth proportional to 12,747.36, 19,099.45 and 7,806.68 is: 11,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.36 : 19,099.45 = 7,806.68 : x
  2. Step 2: Convert to fraction form
    12,747.36/19,099.45 = 7,806.68/x
  3. Step 3: Cross multiply
    12,747.36x = 19,099.45 × 7,806.68
  4. Step 4: Simplify right side
    12,747.36x = 149,103,294.33
  5. Step 5: Solve for x
    x = 149,103,294.33/12,747.36
  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.