Home / 13,716.96-20,576.25-3,857.01

Finding the Fourth Proportional to 13,716.96, 20,576.25 and 3,857.01

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Solution

The fourth proportional to 13,716.96, 20,576.25 and 3,857.01 is: 5,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.96 : 20,576.25 = 3,857.01 : x
  2. Step 2: Convert to fraction form
    13,716.96/20,576.25 = 3,857.01/x
  3. Step 3: Cross multiply
    13,716.96x = 20,576.25 × 3,857.01
  4. Step 4: Simplify right side
    13,716.96x = 79,362,802.01
  5. Step 5: Solve for x
    x = 79,362,802.01/13,716.96
  6. Step 6: Final answer
    x = 5,785.74

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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.