Home / 18,450.21-25,466.96-12,481.76

Finding the Fourth Proportional to 18,450.21, 25,466.96 and 12,481.76

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Solution

The fourth proportional to 18,450.21, 25,466.96 and 12,481.76 is: 17,228.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.21 : 25,466.96 = 12,481.76 : x
  2. Step 2: Convert to fraction form
    18,450.21/25,466.96 = 12,481.76/x
  3. Step 3: Cross multiply
    18,450.21x = 25,466.96 × 12,481.76
  4. Step 4: Simplify right side
    18,450.21x = 317,872,292.91
  5. Step 5: Solve for x
    x = 317,872,292.91/18,450.21
  6. Step 6: Final answer
    x = 17,228.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.