Home / 11,764.75-17,647.15-8,270.37

Finding the Fourth Proportional to 11,764.75, 17,647.15 and 8,270.37

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Solution

The fourth proportional to 11,764.75, 17,647.15 and 8,270.37 is: 12,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,764.75 : 17,647.15 = 8,270.37 : x
  2. Step 2: Convert to fraction form
    11,764.75/17,647.15 = 8,270.37/x
  3. Step 3: Cross multiply
    11,764.75x = 17,647.15 × 8,270.37
  4. Step 4: Simplify right side
    11,764.75x = 145,948,418.59
  5. Step 5: Solve for x
    x = 145,948,418.59/11,764.75
  6. Step 6: Final answer
    x = 12,405.57

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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.