Home / 12,786.36-19,177.92-5,000.64

Finding the Fourth Proportional to 12,786.36, 19,177.92 and 5,000.64

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Solution

The fourth proportional to 12,786.36, 19,177.92 and 5,000.64 is: 7,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786.36 : 19,177.92 = 5,000.64 : x
  2. Step 2: Convert to fraction form
    12,786.36/19,177.92 = 5,000.64/x
  3. Step 3: Cross multiply
    12,786.36x = 19,177.92 × 5,000.64
  4. Step 4: Simplify right side
    12,786.36x = 95,901,873.87
  5. Step 5: Solve for x
    x = 95,901,873.87/12,786.36
  6. Step 6: Final answer
    x = 7,500.33

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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.