Home / 13,675.46-20,511.36-3,813.91

Finding the Fourth Proportional to 13,675.46, 20,511.36 and 3,813.91

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Solution

The fourth proportional to 13,675.46, 20,511.36 and 3,813.91 is: 5,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.46 : 20,511.36 = 3,813.91 : x
  2. Step 2: Convert to fraction form
    13,675.46/20,511.36 = 3,813.91/x
  3. Step 3: Cross multiply
    13,675.46x = 20,511.36 × 3,813.91
  4. Step 4: Simplify right side
    13,675.46x = 78,228,501.73
  5. Step 5: Solve for x
    x = 78,228,501.73/13,675.46
  6. Step 6: Final answer
    x = 5,720.36

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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.