Home / 19,856.75-27,400.01-11,787.53

Finding the Fourth Proportional to 19,856.75, 27,400.01 and 11,787.53

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Solution

The fourth proportional to 19,856.75, 27,400.01 and 11,787.53 is: 16,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.75 : 27,400.01 = 11,787.53 : x
  2. Step 2: Convert to fraction form
    19,856.75/27,400.01 = 11,787.53/x
  3. Step 3: Cross multiply
    19,856.75x = 27,400.01 × 11,787.53
  4. Step 4: Simplify right side
    19,856.75x = 322,978,243.94
  5. Step 5: Solve for x
    x = 322,978,243.94/19,856.75
  6. Step 6: Final answer
    x = 16,265.42

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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.