Home / 12,611.70-18,918.45-3,846.60

Finding the Fourth Proportional to 12,611.70, 18,918.45 and 3,846.60

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Solution

The fourth proportional to 12,611.70, 18,918.45 and 3,846.60 is: 5,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.70 : 18,918.45 = 3,846.60 : x
  2. Step 2: Convert to fraction form
    12,611.70/18,918.45 = 3,846.60/x
  3. Step 3: Cross multiply
    12,611.70x = 18,918.45 × 3,846.60
  4. Step 4: Simplify right side
    12,611.70x = 72,771,709.77
  5. Step 5: Solve for x
    x = 72,771,709.77/12,611.70
  6. Step 6: Final answer
    x = 5,770.17

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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.