Home / 13,776.97-20,662.35-3,916.03

Finding the Fourth Proportional to 13,776.97, 20,662.35 and 3,916.03

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Solution

The fourth proportional to 13,776.97, 20,662.35 and 3,916.03 is: 5,873.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.97 : 20,662.35 = 3,916.03 : x
  2. Step 2: Convert to fraction form
    13,776.97/20,662.35 = 3,916.03/x
  3. Step 3: Cross multiply
    13,776.97x = 20,662.35 × 3,916.03
  4. Step 4: Simplify right side
    13,776.97x = 80,914,382.47
  5. Step 5: Solve for x
    x = 80,914,382.47/13,776.97
  6. Step 6: Final answer
    x = 5,873.16

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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.