Home / 13,696.75-20,545.26-3,308.50

Finding the Fourth Proportional to 13,696.75, 20,545.26 and 3,308.50

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Solution

The fourth proportional to 13,696.75, 20,545.26 and 3,308.50 is: 4,962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.75 : 20,545.26 = 3,308.50 : x
  2. Step 2: Convert to fraction form
    13,696.75/20,545.26 = 3,308.50/x
  3. Step 3: Cross multiply
    13,696.75x = 20,545.26 × 3,308.50
  4. Step 4: Simplify right side
    13,696.75x = 67,973,992.71
  5. Step 5: Solve for x
    x = 67,973,992.71/13,696.75
  6. Step 6: Final answer
    x = 4,962.78

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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.