Home / 13,635.21-20,450.54-3,775.49

Finding the Fourth Proportional to 13,635.21, 20,450.54 and 3,775.49

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Solution

The fourth proportional to 13,635.21, 20,450.54 and 3,775.49 is: 5,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.21 : 20,450.54 = 3,775.49 : x
  2. Step 2: Convert to fraction form
    13,635.21/20,450.54 = 3,775.49/x
  3. Step 3: Cross multiply
    13,635.21x = 20,450.54 × 3,775.49
  4. Step 4: Simplify right side
    13,635.21x = 77,210,688.13
  5. Step 5: Solve for x
    x = 77,210,688.13/13,635.21
  6. Step 6: Final answer
    x = 5,662.60

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1.5x scale

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.