Home / 13,576.64-20,364.82-3,715.90

Finding the Fourth Proportional to 13,576.64, 20,364.82 and 3,715.90

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Solution

The fourth proportional to 13,576.64, 20,364.82 and 3,715.90 is: 5,573.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.64 : 20,364.82 = 3,715.90 : x
  2. Step 2: Convert to fraction form
    13,576.64/20,364.82 = 3,715.90/x
  3. Step 3: Cross multiply
    13,576.64x = 20,364.82 × 3,715.90
  4. Step 4: Simplify right side
    13,576.64x = 75,673,574.44
  5. Step 5: Solve for x
    x = 75,673,574.44/13,576.64
  6. Step 6: Final answer
    x = 5,573.81

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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.