Home / 19,006.92-28,518.08-7,911.54

Finding the Fourth Proportional to 19,006.92, 28,518.08 and 7,911.54

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Solution

The fourth proportional to 19,006.92, 28,518.08 and 7,911.54 is: 11,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,006.92 : 28,518.08 = 7,911.54 : x
  2. Step 2: Convert to fraction form
    19,006.92/28,518.08 = 7,911.54/x
  3. Step 3: Cross multiply
    19,006.92x = 28,518.08 × 7,911.54
  4. Step 4: Simplify right side
    19,006.92x = 225,621,891.09
  5. Step 5: Solve for x
    x = 225,621,891.09/19,006.92
  6. Step 6: Final answer
    x = 11,870.51

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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.