Home / 12,530.36-18,789.66-7,266.87

Finding the Fourth Proportional to 12,530.36, 18,789.66 and 7,266.87

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Solution

The fourth proportional to 12,530.36, 18,789.66 and 7,266.87 is: 10,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.36 : 18,789.66 = 7,266.87 : x
  2. Step 2: Convert to fraction form
    12,530.36/18,789.66 = 7,266.87/x
  3. Step 3: Cross multiply
    12,530.36x = 18,789.66 × 7,266.87
  4. Step 4: Simplify right side
    12,530.36x = 136,542,016.56
  5. Step 5: Solve for x
    x = 136,542,016.56/12,530.36
  6. Step 6: Final answer
    x = 10,896.90

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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.