Home / 11,850.29-17,778.77-5,187.38

Finding the Fourth Proportional to 11,850.29, 17,778.77 and 5,187.38

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Solution

The fourth proportional to 11,850.29, 17,778.77 and 5,187.38 is: 7,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,850.29 : 17,778.77 = 5,187.38 : x
  2. Step 2: Convert to fraction form
    11,850.29/17,778.77 = 5,187.38/x
  3. Step 3: Cross multiply
    11,850.29x = 17,778.77 × 5,187.38
  4. Step 4: Simplify right side
    11,850.29x = 92,225,121.09
  5. Step 5: Solve for x
    x = 92,225,121.09/11,850.29
  6. Step 6: Final answer
    x = 7,782.52

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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.