Home / 13,786.02-20,660.58-6,755.28

Finding the Fourth Proportional to 13,786.02, 20,660.58 and 6,755.28

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Solution

The fourth proportional to 13,786.02, 20,660.58 and 6,755.28 is: 10,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.02 : 20,660.58 = 6,755.28 : x
  2. Step 2: Convert to fraction form
    13,786.02/20,660.58 = 6,755.28/x
  3. Step 3: Cross multiply
    13,786.02x = 20,660.58 × 6,755.28
  4. Step 4: Simplify right side
    13,786.02x = 139,568,002.86
  5. Step 5: Solve for x
    x = 139,568,002.86/13,786.02
  6. Step 6: Final answer
    x = 10,123.88

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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.