Home / 19,640.18-27,098.82-11,140.37

Finding the Fourth Proportional to 19,640.18, 27,098.82 and 11,140.37

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Solution

The fourth proportional to 19,640.18, 27,098.82 and 11,140.37 is: 15,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.18 : 27,098.82 = 11,140.37 : x
  2. Step 2: Convert to fraction form
    19,640.18/27,098.82 = 11,140.37/x
  3. Step 3: Cross multiply
    19,640.18x = 27,098.82 × 11,140.37
  4. Step 4: Simplify right side
    19,640.18x = 301,890,745.87
  5. Step 5: Solve for x
    x = 301,890,745.87/19,640.18
  6. Step 6: Final answer
    x = 15,371.08

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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.