Home / 13,911.22-20,866.84-3,522.96

Finding the Fourth Proportional to 13,911.22, 20,866.84 and 3,522.96

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Solution

The fourth proportional to 13,911.22, 20,866.84 and 3,522.96 is: 5,284.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.22 : 20,866.84 = 3,522.96 : x
  2. Step 2: Convert to fraction form
    13,911.22/20,866.84 = 3,522.96/x
  3. Step 3: Cross multiply
    13,911.22x = 20,866.84 × 3,522.96
  4. Step 4: Simplify right side
    13,911.22x = 73,513,042.65
  5. Step 5: Solve for x
    x = 73,513,042.65/13,911.22
  6. Step 6: Final answer
    x = 5,284.44

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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.