Home / 13,735.75-20,601.79-3,875.82

Finding the Fourth Proportional to 13,735.75, 20,601.79 and 3,875.82

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Solution

The fourth proportional to 13,735.75, 20,601.79 and 3,875.82 is: 5,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.75 : 20,601.79 = 3,875.82 : x
  2. Step 2: Convert to fraction form
    13,735.75/20,601.79 = 3,875.82/x
  3. Step 3: Cross multiply
    13,735.75x = 20,601.79 × 3,875.82
  4. Step 4: Simplify right side
    13,735.75x = 79,848,810.34
  5. Step 5: Solve for x
    x = 79,848,810.34/13,735.75
  6. Step 6: Final answer
    x = 5,813.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.