Home / 12,635.16-18,954.60-3,868.80

Finding the Fourth Proportional to 12,635.16, 18,954.60 and 3,868.80

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Solution

The fourth proportional to 12,635.16, 18,954.60 and 3,868.80 is: 5,803.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.16 : 18,954.60 = 3,868.80 : x
  2. Step 2: Convert to fraction form
    12,635.16/18,954.60 = 3,868.80/x
  3. Step 3: Cross multiply
    12,635.16x = 18,954.60 × 3,868.80
  4. Step 4: Simplify right side
    12,635.16x = 73,331,556.48
  5. Step 5: Solve for x
    x = 73,331,556.48/12,635.16
  6. Step 6: Final answer
    x = 5,803.77

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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.