Home / 18,738.06-28,099.20-7,637.22

Finding the Fourth Proportional to 18,738.06, 28,099.20 and 7,637.22

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Solution

The fourth proportional to 18,738.06, 28,099.20 and 7,637.22 is: 11,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.06 : 28,099.20 = 7,637.22 : x
  2. Step 2: Convert to fraction form
    18,738.06/28,099.20 = 7,637.22/x
  3. Step 3: Cross multiply
    18,738.06x = 28,099.20 × 7,637.22
  4. Step 4: Simplify right side
    18,738.06x = 214,599,772.22
  5. Step 5: Solve for x
    x = 214,599,772.22/18,738.06
  6. Step 6: Final answer
    x = 11,452.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.