Home / 13,450.10-20,172.80-4,087.85

Finding the Fourth Proportional to 13,450.10, 20,172.80 and 4,087.85

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Solution

The fourth proportional to 13,450.10, 20,172.80 and 4,087.85 is: 6,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.10 : 20,172.80 = 4,087.85 : x
  2. Step 2: Convert to fraction form
    13,450.10/20,172.80 = 4,087.85/x
  3. Step 3: Cross multiply
    13,450.10x = 20,172.80 × 4,087.85
  4. Step 4: Simplify right side
    13,450.10x = 82,463,259.18
  5. Step 5: Solve for x
    x = 82,463,259.18/13,450.10
  6. Step 6: Final answer
    x = 6,131.05

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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.