Home / 18,213.36-27,333-7,828.08

Finding the Fourth Proportional to 18,213.36, 27,333 and 7,828.08

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Solution

The fourth proportional to 18,213.36, 27,333 and 7,828.08 is: 11,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.36 : 27,333 = 7,828.08 : x
  2. Step 2: Convert to fraction form
    18,213.36/27,333 = 7,828.08/x
  3. Step 3: Cross multiply
    18,213.36x = 27,333 × 7,828.08
  4. Step 4: Simplify right side
    18,213.36x = 213,964,910.64
  5. Step 5: Solve for x
    x = 213,964,910.64/18,213.36
  6. Step 6: Final answer
    x = 11,747.69

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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.