Home / 14,481.27-21,685.14-12,135.11

Finding the Fourth Proportional to 14,481.27, 21,685.14 and 12,135.11

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Solution

The fourth proportional to 14,481.27, 21,685.14 and 12,135.11 is: 18,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.27 : 21,685.14 = 12,135.11 : x
  2. Step 2: Convert to fraction form
    14,481.27/21,685.14 = 12,135.11/x
  3. Step 3: Cross multiply
    14,481.27x = 21,685.14 × 12,135.11
  4. Step 4: Simplify right side
    14,481.27x = 263,151,450.84
  5. Step 5: Solve for x
    x = 263,151,450.84/14,481.27
  6. Step 6: Final answer
    x = 18,171.85

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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.