Home / 13,218.51-19,821.99-5,004.75

Finding the Fourth Proportional to 13,218.51, 19,821.99 and 5,004.75

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Solution

The fourth proportional to 13,218.51, 19,821.99 and 5,004.75 is: 7,504.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.51 : 19,821.99 = 5,004.75 : x
  2. Step 2: Convert to fraction form
    13,218.51/19,821.99 = 5,004.75/x
  3. Step 3: Cross multiply
    13,218.51x = 19,821.99 × 5,004.75
  4. Step 4: Simplify right side
    13,218.51x = 99,204,104.45
  5. Step 5: Solve for x
    x = 99,204,104.45/13,218.51
  6. Step 6: Final answer
    x = 7,504.94

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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.