Home / 13,505.98-20,254.89-3,645.37

Finding the Fourth Proportional to 13,505.98, 20,254.89 and 3,645.37

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Solution

The fourth proportional to 13,505.98, 20,254.89 and 3,645.37 is: 5,466.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.98 : 20,254.89 = 3,645.37 : x
  2. Step 2: Convert to fraction form
    13,505.98/20,254.89 = 3,645.37/x
  3. Step 3: Cross multiply
    13,505.98x = 20,254.89 × 3,645.37
  4. Step 4: Simplify right side
    13,505.98x = 73,836,568.36
  5. Step 5: Solve for x
    x = 73,836,568.36/13,505.98
  6. Step 6: Final answer
    x = 5,466.95

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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.