Home / 12,736.26-19,076.72-7,790.94

Finding the Fourth Proportional to 12,736.26, 19,076.72 and 7,790.94

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Solution

The fourth proportional to 12,736.26, 19,076.72 and 7,790.94 is: 11,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.26 : 19,076.72 = 7,790.94 : x
  2. Step 2: Convert to fraction form
    12,736.26/19,076.72 = 7,790.94/x
  3. Step 3: Cross multiply
    12,736.26x = 19,076.72 × 7,790.94
  4. Step 4: Simplify right side
    12,736.26x = 148,625,541.96
  5. Step 5: Solve for x
    x = 148,625,541.96/12,736.26
  6. Step 6: Final answer
    x = 11,669.48

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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.