Home / 13,809.78-20,711.77-4,450.64

Finding the Fourth Proportional to 13,809.78, 20,711.77 and 4,450.64

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Solution

The fourth proportional to 13,809.78, 20,711.77 and 4,450.64 is: 6,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.78 : 20,711.77 = 4,450.64 : x
  2. Step 2: Convert to fraction form
    13,809.78/20,711.77 = 4,450.64/x
  3. Step 3: Cross multiply
    13,809.78x = 20,711.77 × 4,450.64
  4. Step 4: Simplify right side
    13,809.78x = 92,180,632.03
  5. Step 5: Solve for x
    x = 92,180,632.03/13,809.78
  6. Step 6: Final answer
    x = 6,675.03

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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.