Home / 13,821.80-20,726.62-5,054.44

Finding the Fourth Proportional to 13,821.80, 20,726.62 and 5,054.44

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Solution

The fourth proportional to 13,821.80, 20,726.62 and 5,054.44 is: 7,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.80 : 20,726.62 = 5,054.44 : x
  2. Step 2: Convert to fraction form
    13,821.80/20,726.62 = 5,054.44/x
  3. Step 3: Cross multiply
    13,821.80x = 20,726.62 × 5,054.44
  4. Step 4: Simplify right side
    13,821.80x = 104,761,457.19
  5. Step 5: Solve for x
    x = 104,761,457.19/13,821.80
  6. Step 6: Final answer
    x = 7,579.44

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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.