Home / 12,450.36-18,678.78-5,523.24

Finding the Fourth Proportional to 12,450.36, 18,678.78 and 5,523.24

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Solution

The fourth proportional to 12,450.36, 18,678.78 and 5,523.24 is: 8,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.36 : 18,678.78 = 5,523.24 : x
  2. Step 2: Convert to fraction form
    12,450.36/18,678.78 = 5,523.24/x
  3. Step 3: Cross multiply
    12,450.36x = 18,678.78 × 5,523.24
  4. Step 4: Simplify right side
    12,450.36x = 103,167,384.85
  5. Step 5: Solve for x
    x = 103,167,384.85/12,450.36
  6. Step 6: Final answer
    x = 8,286.30

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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.