Home / 13,726,738.24-18,935,028.48-8,561,131.72

Finding the Fourth Proportional to 13,726,738.24, 18,935,028.48 and 8,561,131.72

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Solution

The fourth proportional to 13,726,738.24, 18,935,028.48 and 8,561,131.72 is: 11,809,453.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726,738.24 : 18,935,028.48 = 8,561,131.72 : x
  2. Step 2: Convert to fraction form
    13,726,738.24/18,935,028.48 = 8,561,131.72/x
  3. Step 3: Cross multiply
    13,726,738.24x = 18,935,028.48 × 8,561,131.72
  4. Step 4: Simplify right side
    13,726,738.24x = 162,105,272,923,998.06
  5. Step 5: Solve for x
    x = 162,105,272,923,998.06/13,726,738.24
  6. Step 6: Final answer
    x = 11,809,453.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.