Home / 13,564.44-20,290.50-12,735

Finding the Fourth Proportional to 13,564.44, 20,290.50 and 12,735

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Solution

The fourth proportional to 13,564.44, 20,290.50 and 12,735 is: 19,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.44 : 20,290.50 = 12,735 : x
  2. Step 2: Convert to fraction form
    13,564.44/20,290.50 = 12,735/x
  3. Step 3: Cross multiply
    13,564.44x = 20,290.50 × 12,735
  4. Step 4: Simplify right side
    13,564.44x = 258,399,517.50
  5. Step 5: Solve for x
    x = 258,399,517.50/13,564.44
  6. Step 6: Final answer
    x = 19,049.77

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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.