Home / 19,726.35-27,218.72-11,661.30

Finding the Fourth Proportional to 19,726.35, 27,218.72 and 11,661.30

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Solution

The fourth proportional to 19,726.35, 27,218.72 and 11,661.30 is: 16,090.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,726.35 : 27,218.72 = 11,661.30 : x
  2. Step 2: Convert to fraction form
    19,726.35/27,218.72 = 11,661.30/x
  3. Step 3: Cross multiply
    19,726.35x = 27,218.72 × 11,661.30
  4. Step 4: Simplify right side
    19,726.35x = 317,405,659.54
  5. Step 5: Solve for x
    x = 317,405,659.54/19,726.35
  6. Step 6: Final answer
    x = 16,090.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.