Home / 13,305.30-19,954.35-3,945.30

Finding the Fourth Proportional to 13,305.30, 19,954.35 and 3,945.30

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Solution

The fourth proportional to 13,305.30, 19,954.35 and 3,945.30 is: 5,916.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.30 : 19,954.35 = 3,945.30 : x
  2. Step 2: Convert to fraction form
    13,305.30/19,954.35 = 3,945.30/x
  3. Step 3: Cross multiply
    13,305.30x = 19,954.35 × 3,945.30
  4. Step 4: Simplify right side
    13,305.30x = 78,725,897.06
  5. Step 5: Solve for x
    x = 78,725,897.06/13,305.30
  6. Step 6: Final answer
    x = 5,916.88

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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.