Home / 12,515.96-18,772.66-3,281.96

Finding the Fourth Proportional to 12,515.96, 18,772.66 and 3,281.96

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Solution

The fourth proportional to 12,515.96, 18,772.66 and 3,281.96 is: 4,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.96 : 18,772.66 = 3,281.96 : x
  2. Step 2: Convert to fraction form
    12,515.96/18,772.66 = 3,281.96/x
  3. Step 3: Cross multiply
    12,515.96x = 18,772.66 × 3,281.96
  4. Step 4: Simplify right side
    12,515.96x = 61,611,119.21
  5. Step 5: Solve for x
    x = 61,611,119.21/12,515.96
  6. Step 6: Final answer
    x = 4,922.60

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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.