Home / 13,441.07-20,165.70-6,871.87

Finding the Fourth Proportional to 13,441.07, 20,165.70 and 6,871.87

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Solution

The fourth proportional to 13,441.07, 20,165.70 and 6,871.87 is: 10,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.07 : 20,165.70 = 6,871.87 : x
  2. Step 2: Convert to fraction form
    13,441.07/20,165.70 = 6,871.87/x
  3. Step 3: Cross multiply
    13,441.07x = 20,165.70 × 6,871.87
  4. Step 4: Simplify right side
    13,441.07x = 138,576,063.12
  5. Step 5: Solve for x
    x = 138,576,063.12/13,441.07
  6. Step 6: Final answer
    x = 10,309.90

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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.