Home / 18,438.68-27,658.94-11,090.36

Finding the Fourth Proportional to 18,438.68, 27,658.94 and 11,090.36

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Solution

The fourth proportional to 18,438.68, 27,658.94 and 11,090.36 is: 16,636.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.68 : 27,658.94 = 11,090.36 : x
  2. Step 2: Convert to fraction form
    18,438.68/27,658.94 = 11,090.36/x
  3. Step 3: Cross multiply
    18,438.68x = 27,658.94 × 11,090.36
  4. Step 4: Simplify right side
    18,438.68x = 306,747,615.51
  5. Step 5: Solve for x
    x = 306,747,615.51/18,438.68
  6. Step 6: Final answer
    x = 16,636.09

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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.