Home / 13,838.79-20,745.44-5,516.82

Finding the Fourth Proportional to 13,838.79, 20,745.44 and 5,516.82

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Solution

The fourth proportional to 13,838.79, 20,745.44 and 5,516.82 is: 8,270.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.79 : 20,745.44 = 5,516.82 : x
  2. Step 2: Convert to fraction form
    13,838.79/20,745.44 = 5,516.82/x
  3. Step 3: Cross multiply
    13,838.79x = 20,745.44 × 5,516.82
  4. Step 4: Simplify right side
    13,838.79x = 114,448,830.72
  5. Step 5: Solve for x
    x = 114,448,830.72/13,838.79
  6. Step 6: Final answer
    x = 8,270.15

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1.5x scale

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.