Home / 18,643.73-25,719.68-11,085.83

Finding the Fourth Proportional to 18,643.73, 25,719.68 and 11,085.83

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Solution

The fourth proportional to 18,643.73, 25,719.68 and 11,085.83 is: 15,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.73 : 25,719.68 = 11,085.83 : x
  2. Step 2: Convert to fraction form
    18,643.73/25,719.68 = 11,085.83/x
  3. Step 3: Cross multiply
    18,643.73x = 25,719.68 × 11,085.83
  4. Step 4: Simplify right side
    18,643.73x = 285,123,899.25
  5. Step 5: Solve for x
    x = 285,123,899.25/18,643.73
  6. Step 6: Final answer
    x = 15,293.28

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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.