Home / 18,943.70-26,131.46-11,857.82

Finding the Fourth Proportional to 18,943.70, 26,131.46 and 11,857.82

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Solution

The fourth proportional to 18,943.70, 26,131.46 and 11,857.82 is: 16,357.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.70 : 26,131.46 = 11,857.82 : x
  2. Step 2: Convert to fraction form
    18,943.70/26,131.46 = 11,857.82/x
  3. Step 3: Cross multiply
    18,943.70x = 26,131.46 × 11,857.82
  4. Step 4: Simplify right side
    18,943.70x = 309,862,106.06
  5. Step 5: Solve for x
    x = 309,862,106.06/18,943.70
  6. Step 6: Final answer
    x = 16,357.00

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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.