Home / 19,131.48-26,400.36-11,174.04

Finding the Fourth Proportional to 19,131.48, 26,400.36 and 11,174.04

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Solution

The fourth proportional to 19,131.48, 26,400.36 and 11,174.04 is: 15,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.48 : 26,400.36 = 11,174.04 : x
  2. Step 2: Convert to fraction form
    19,131.48/26,400.36 = 11,174.04/x
  3. Step 3: Cross multiply
    19,131.48x = 26,400.36 × 11,174.04
  4. Step 4: Simplify right side
    19,131.48x = 294,998,678.65
  5. Step 5: Solve for x
    x = 294,998,678.65/19,131.48
  6. Step 6: Final answer
    x = 15,419.54

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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.