Home / 19,189-28,785.26-5,338.12

Finding the Fourth Proportional to 19,189, 28,785.26 and 5,338.12

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Solution

The fourth proportional to 19,189, 28,785.26 and 5,338.12 is: 8,007.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189 : 28,785.26 = 5,338.12 : x
  2. Step 2: Convert to fraction form
    19,189/28,785.26 = 5,338.12/x
  3. Step 3: Cross multiply
    19,189x = 28,785.26 × 5,338.12
  4. Step 4: Simplify right side
    19,189x = 153,659,172.11
  5. Step 5: Solve for x
    x = 153,659,172.11/19,189
  6. Step 6: Final answer
    x = 8,007.67

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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.