Home / 13,912.28-20,840.62-8,362.62

Finding the Fourth Proportional to 13,912.28, 20,840.62 and 8,362.62

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Solution

The fourth proportional to 13,912.28, 20,840.62 and 8,362.62 is: 12,527.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.28 : 20,840.62 = 8,362.62 : x
  2. Step 2: Convert to fraction form
    13,912.28/20,840.62 = 8,362.62/x
  3. Step 3: Cross multiply
    13,912.28x = 20,840.62 × 8,362.62
  4. Step 4: Simplify right side
    13,912.28x = 174,282,185.62
  5. Step 5: Solve for x
    x = 174,282,185.62/13,912.28
  6. Step 6: Final answer
    x = 12,527.22

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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.