Home / 13,371.47-20,059.19-12,551.39

Finding the Fourth Proportional to 13,371.47, 20,059.19 and 12,551.39

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Solution

The fourth proportional to 13,371.47, 20,059.19 and 12,551.39 is: 18,828.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.47 : 20,059.19 = 12,551.39 : x
  2. Step 2: Convert to fraction form
    13,371.47/20,059.19 = 12,551.39/x
  3. Step 3: Cross multiply
    13,371.47x = 20,059.19 × 12,551.39
  4. Step 4: Simplify right side
    13,371.47x = 251,770,716.77
  5. Step 5: Solve for x
    x = 251,770,716.77/13,371.47
  6. Step 6: Final answer
    x = 18,828.95

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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.