Home / 19,898.06-27,458.58-11,399.54

Finding the Fourth Proportional to 19,898.06, 27,458.58 and 11,399.54

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Solution

The fourth proportional to 19,898.06, 27,458.58 and 11,399.54 is: 15,730.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.06 : 27,458.58 = 11,399.54 : x
  2. Step 2: Convert to fraction form
    19,898.06/27,458.58 = 11,399.54/x
  3. Step 3: Cross multiply
    19,898.06x = 27,458.58 × 11,399.54
  4. Step 4: Simplify right side
    19,898.06x = 313,015,181.05
  5. Step 5: Solve for x
    x = 313,015,181.05/19,898.06
  6. Step 6: Final answer
    x = 15,730.94

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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.