Home / 12,172.26-18,254.74-4,379.25

Finding the Fourth Proportional to 12,172.26, 18,254.74 and 4,379.25

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Solution

The fourth proportional to 12,172.26, 18,254.74 and 4,379.25 is: 6,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.26 : 18,254.74 = 4,379.25 : x
  2. Step 2: Convert to fraction form
    12,172.26/18,254.74 = 4,379.25/x
  3. Step 3: Cross multiply
    12,172.26x = 18,254.74 × 4,379.25
  4. Step 4: Simplify right side
    12,172.26x = 79,942,070.15
  5. Step 5: Solve for x
    x = 79,942,070.15/12,172.26
  6. Step 6: Final answer
    x = 6,567.56

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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.