Home / 12,157.03-18,221.99-5,134.94

Finding the Fourth Proportional to 12,157.03, 18,221.99 and 5,134.94

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Solution

The fourth proportional to 12,157.03, 18,221.99 and 5,134.94 is: 7,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.03 : 18,221.99 = 5,134.94 : x
  2. Step 2: Convert to fraction form
    12,157.03/18,221.99 = 5,134.94/x
  3. Step 3: Cross multiply
    12,157.03x = 18,221.99 × 5,134.94
  4. Step 4: Simplify right side
    12,157.03x = 93,568,825.33
  5. Step 5: Solve for x
    x = 93,568,825.33/12,157.03
  6. Step 6: Final answer
    x = 7,696.68

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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.