Home / 19,997.19-27,599.97-11,505.03

Finding the Fourth Proportional to 19,997.19, 27,599.97 and 11,505.03

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Solution

The fourth proportional to 19,997.19, 27,599.97 and 11,505.03 is: 15,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.19 : 27,599.97 = 11,505.03 : x
  2. Step 2: Convert to fraction form
    19,997.19/27,599.97 = 11,505.03/x
  3. Step 3: Cross multiply
    19,997.19x = 27,599.97 × 11,505.03
  4. Step 4: Simplify right side
    19,997.19x = 317,538,482.85
  5. Step 5: Solve for x
    x = 317,538,482.85/19,997.19
  6. Step 6: Final answer
    x = 15,879.16

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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.