Home / 18,990.94-26,203.03-11,028.38

Finding the Fourth Proportional to 18,990.94, 26,203.03 and 11,028.38

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Solution

The fourth proportional to 18,990.94, 26,203.03 and 11,028.38 is: 15,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.94 : 26,203.03 = 11,028.38 : x
  2. Step 2: Convert to fraction form
    18,990.94/26,203.03 = 11,028.38/x
  3. Step 3: Cross multiply
    18,990.94x = 26,203.03 × 11,028.38
  4. Step 4: Simplify right side
    18,990.94x = 288,976,971.99
  5. Step 5: Solve for x
    x = 288,976,971.99/18,990.94
  6. Step 6: Final answer
    x = 15,216.57

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1.5x scale

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.