Home / 13,450.53-18,558.68-8,144.22

Finding the Fourth Proportional to 13,450.53, 18,558.68 and 8,144.22

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Solution

The fourth proportional to 13,450.53, 18,558.68 and 8,144.22 is: 11,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.53 : 18,558.68 = 8,144.22 : x
  2. Step 2: Convert to fraction form
    13,450.53/18,558.68 = 8,144.22/x
  3. Step 3: Cross multiply
    13,450.53x = 18,558.68 × 8,144.22
  4. Step 4: Simplify right side
    13,450.53x = 151,145,932.11
  5. Step 5: Solve for x
    x = 151,145,932.11/13,450.53
  6. Step 6: Final answer
    x = 11,237.17

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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.