Home / 13,371.75-20,055.96-3,511.89

Finding the Fourth Proportional to 13,371.75, 20,055.96 and 3,511.89

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Solution

The fourth proportional to 13,371.75, 20,055.96 and 3,511.89 is: 5,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.75 : 20,055.96 = 3,511.89 : x
  2. Step 2: Convert to fraction form
    13,371.75/20,055.96 = 3,511.89/x
  3. Step 3: Cross multiply
    13,371.75x = 20,055.96 × 3,511.89
  4. Step 4: Simplify right side
    13,371.75x = 70,434,325.36
  5. Step 5: Solve for x
    x = 70,434,325.36/13,371.75
  6. Step 6: Final answer
    x = 5,267.40

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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.