Home / 19,128.73-26,399.31-11,173.52

Finding the Fourth Proportional to 19,128.73, 26,399.31 and 11,173.52

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Solution

The fourth proportional to 19,128.73, 26,399.31 and 11,173.52 is: 15,420.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.73 : 26,399.31 = 11,173.52 : x
  2. Step 2: Convert to fraction form
    19,128.73/26,399.31 = 11,173.52/x
  3. Step 3: Cross multiply
    19,128.73x = 26,399.31 × 11,173.52
  4. Step 4: Simplify right side
    19,128.73x = 294,973,218.27
  5. Step 5: Solve for x
    x = 294,973,218.27/19,128.73
  6. Step 6: Final answer
    x = 15,420.43

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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.