Home / 26,107.94-39,128.36-11,866

Finding the Fourth Proportional to 26,107.94, 39,128.36 and 11,866

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Solution

The fourth proportional to 26,107.94, 39,128.36 and 11,866 is: 17,783.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,107.94 : 39,128.36 = 11,866 : x
  2. Step 2: Convert to fraction form
    26,107.94/39,128.36 = 11,866/x
  3. Step 3: Cross multiply
    26,107.94x = 39,128.36 × 11,866
  4. Step 4: Simplify right side
    26,107.94x = 464,297,119.76
  5. Step 5: Solve for x
    x = 464,297,119.76/26,107.94
  6. Step 6: Final answer
    x = 17,783.75

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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.