Home / 14,164.35-21,228.30-8,611.80

Finding the Fourth Proportional to 14,164.35, 21,228.30 and 8,611.80

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Solution

The fourth proportional to 14,164.35, 21,228.30 and 8,611.80 is: 12,906.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,164.35 : 21,228.30 = 8,611.80 : x
  2. Step 2: Convert to fraction form
    14,164.35/21,228.30 = 8,611.80/x
  3. Step 3: Cross multiply
    14,164.35x = 21,228.30 × 8,611.80
  4. Step 4: Simplify right side
    14,164.35x = 182,813,873.94
  5. Step 5: Solve for x
    x = 182,813,873.94/14,164.35
  6. Step 6: Final answer
    x = 12,906.62

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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.