Home / 18,990.86-26,202.92-11,028.36

Finding the Fourth Proportional to 18,990.86, 26,202.92 and 11,028.36

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Solution

The fourth proportional to 18,990.86, 26,202.92 and 11,028.36 is: 15,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.86 : 26,202.92 = 11,028.36 : x
  2. Step 2: Convert to fraction form
    18,990.86/26,202.92 = 11,028.36/x
  3. Step 3: Cross multiply
    18,990.86x = 26,202.92 × 11,028.36
  4. Step 4: Simplify right side
    18,990.86x = 288,975,234.81
  5. Step 5: Solve for x
    x = 288,975,234.81/18,990.86
  6. Step 6: Final answer
    x = 15,216.54

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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.