Home / 13,853.16-20,766.30-6,906.60

Finding the Fourth Proportional to 13,853.16, 20,766.30 and 6,906.60

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Solution

The fourth proportional to 13,853.16, 20,766.30 and 6,906.60 is: 10,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.16 : 20,766.30 = 6,906.60 : x
  2. Step 2: Convert to fraction form
    13,853.16/20,766.30 = 6,906.60/x
  3. Step 3: Cross multiply
    13,853.16x = 20,766.30 × 6,906.60
  4. Step 4: Simplify right side
    13,853.16x = 143,424,527.58
  5. Step 5: Solve for x
    x = 143,424,527.58/13,853.16
  6. Step 6: Final answer
    x = 10,353.20

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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.