Home / 18,735.22-28,104.45-7,642.67

Finding the Fourth Proportional to 18,735.22, 28,104.45 and 7,642.67

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Solution

The fourth proportional to 18,735.22, 28,104.45 and 7,642.67 is: 11,464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.22 : 28,104.45 = 7,642.67 : x
  2. Step 2: Convert to fraction form
    18,735.22/28,104.45 = 7,642.67/x
  3. Step 3: Cross multiply
    18,735.22x = 28,104.45 × 7,642.67
  4. Step 4: Simplify right side
    18,735.22x = 214,792,998.67
  5. Step 5: Solve for x
    x = 214,792,998.67/18,735.22
  6. Step 6: Final answer
    x = 11,464.67

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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.