Home / 12,237.78-18,357.03-8,104.26

Finding the Fourth Proportional to 12,237.78, 18,357.03 and 8,104.26

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Solution

The fourth proportional to 12,237.78, 18,357.03 and 8,104.26 is: 12,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.78 : 18,357.03 = 8,104.26 : x
  2. Step 2: Convert to fraction form
    12,237.78/18,357.03 = 8,104.26/x
  3. Step 3: Cross multiply
    12,237.78x = 18,357.03 × 8,104.26
  4. Step 4: Simplify right side
    12,237.78x = 148,770,143.95
  5. Step 5: Solve for x
    x = 148,770,143.95/12,237.78
  6. Step 6: Final answer
    x = 12,156.63

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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.