Home / 13,697.80-20,546.67-3,309.55

Finding the Fourth Proportional to 13,697.80, 20,546.67 and 3,309.55

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Solution

The fourth proportional to 13,697.80, 20,546.67 and 3,309.55 is: 4,964.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.80 : 20,546.67 = 3,309.55 : x
  2. Step 2: Convert to fraction form
    13,697.80/20,546.67 = 3,309.55/x
  3. Step 3: Cross multiply
    13,697.80x = 20,546.67 × 3,309.55
  4. Step 4: Simplify right side
    13,697.80x = 68,000,231.70
  5. Step 5: Solve for x
    x = 68,000,231.70/13,697.80
  6. Step 6: Final answer
    x = 4,964.32

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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.