Home / 19,961.20-27,546.44-11,009.28

Finding the Fourth Proportional to 19,961.20, 27,546.44 and 11,009.28

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Solution

The fourth proportional to 19,961.20, 27,546.44 and 11,009.28 is: 15,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.20 : 27,546.44 = 11,009.28 : x
  2. Step 2: Convert to fraction form
    19,961.20/27,546.44 = 11,009.28/x
  3. Step 3: Cross multiply
    19,961.20x = 27,546.44 × 11,009.28
  4. Step 4: Simplify right side
    19,961.20x = 303,266,470.96
  5. Step 5: Solve for x
    x = 303,266,470.96/19,961.20
  6. Step 6: Final answer
    x = 15,192.80

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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.