Home / 12,558.38-18,866.97-11,849.09

Finding the Fourth Proportional to 12,558.38, 18,866.97 and 11,849.09

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Solution

The fourth proportional to 12,558.38, 18,866.97 and 11,849.09 is: 17,801.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.38 : 18,866.97 = 11,849.09 : x
  2. Step 2: Convert to fraction form
    12,558.38/18,866.97 = 11,849.09/x
  3. Step 3: Cross multiply
    12,558.38x = 18,866.97 × 11,849.09
  4. Step 4: Simplify right side
    12,558.38x = 223,556,331.22
  5. Step 5: Solve for x
    x = 223,556,331.22/12,558.38
  6. Step 6: Final answer
    x = 17,801.37

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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.