Home / 13,828.84-19,083.30-8,085.88

Finding the Fourth Proportional to 13,828.84, 19,083.30 and 8,085.88

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Solution

The fourth proportional to 13,828.84, 19,083.30 and 8,085.88 is: 11,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.84 : 19,083.30 = 8,085.88 : x
  2. Step 2: Convert to fraction form
    13,828.84/19,083.30 = 8,085.88/x
  3. Step 3: Cross multiply
    13,828.84x = 19,083.30 × 8,085.88
  4. Step 4: Simplify right side
    13,828.84x = 154,305,273.80
  5. Step 5: Solve for x
    x = 154,305,273.80/13,828.84
  6. Step 6: Final answer
    x = 11,158.22

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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.