Home / 13,128.44-19,688.41-4,361

Finding the Fourth Proportional to 13,128.44, 19,688.41 and 4,361

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Solution

The fourth proportional to 13,128.44, 19,688.41 and 4,361 is: 6,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.44 : 19,688.41 = 4,361 : x
  2. Step 2: Convert to fraction form
    13,128.44/19,688.41 = 4,361/x
  3. Step 3: Cross multiply
    13,128.44x = 19,688.41 × 4,361
  4. Step 4: Simplify right side
    13,128.44x = 85,861,156.01
  5. Step 5: Solve for x
    x = 85,861,156.01/13,128.44
  6. Step 6: Final answer
    x = 6,540.09

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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.