Home / 13,450.21-18,558.27-8,144.92

Finding the Fourth Proportional to 13,450.21, 18,558.27 and 8,144.92

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Solution

The fourth proportional to 13,450.21, 18,558.27 and 8,144.92 is: 11,238.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.21 : 18,558.27 = 8,144.92 : x
  2. Step 2: Convert to fraction form
    13,450.21/18,558.27 = 8,144.92/x
  3. Step 3: Cross multiply
    13,450.21x = 18,558.27 × 8,144.92
  4. Step 4: Simplify right side
    13,450.21x = 151,155,624.49
  5. Step 5: Solve for x
    x = 151,155,624.49/13,450.21
  6. Step 6: Final answer
    x = 11,238.16

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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.