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Finding the Fourth Proportional to 19,008, 26,231.04 and 11,556

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Solution

The fourth proportional to 19,008, 26,231.04 and 11,556 is: 15,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008 : 26,231.04 = 11,556 : x
  2. Step 2: Convert to fraction form
    19,008/26,231.04 = 11,556/x
  3. Step 3: Cross multiply
    19,008x = 26,231.04 × 11,556
  4. Step 4: Simplify right side
    19,008x = 303,125,898.24
  5. Step 5: Solve for x
    x = 303,125,898.24/19,008
  6. Step 6: Final answer
    x = 15,947.28

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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.