Home / 14,146.38-21,216.83-13,443.90

Finding the Fourth Proportional to 14,146.38, 21,216.83 and 13,443.90

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Solution

The fourth proportional to 14,146.38, 21,216.83 and 13,443.90 is: 20,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.38 : 21,216.83 = 13,443.90 : x
  2. Step 2: Convert to fraction form
    14,146.38/21,216.83 = 13,443.90/x
  3. Step 3: Cross multiply
    14,146.38x = 21,216.83 × 13,443.90
  4. Step 4: Simplify right side
    14,146.38x = 285,236,873.62
  5. Step 5: Solve for x
    x = 285,236,873.62/14,146.38
  6. Step 6: Final answer
    x = 20,163.24

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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.