Home / 12,736.98-19,107.50-11,856.51

Finding the Fourth Proportional to 12,736.98, 19,107.50 and 11,856.51

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Solution

The fourth proportional to 12,736.98, 19,107.50 and 11,856.51 is: 17,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.98 : 19,107.50 = 11,856.51 : x
  2. Step 2: Convert to fraction form
    12,736.98/19,107.50 = 11,856.51/x
  3. Step 3: Cross multiply
    12,736.98x = 19,107.50 × 11,856.51
  4. Step 4: Simplify right side
    12,736.98x = 226,548,205.54
  5. Step 5: Solve for x
    x = 226,548,205.54/12,736.98
  6. Step 6: Final answer
    x = 17,786.65

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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.