Home / 12,884.70-19,315.80-4,992.60

Finding the Fourth Proportional to 12,884.70, 19,315.80 and 4,992.60

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Solution

The fourth proportional to 12,884.70, 19,315.80 and 4,992.60 is: 7,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.70 : 19,315.80 = 4,992.60 : x
  2. Step 2: Convert to fraction form
    12,884.70/19,315.80 = 4,992.60/x
  3. Step 3: Cross multiply
    12,884.70x = 19,315.80 × 4,992.60
  4. Step 4: Simplify right side
    12,884.70x = 96,436,063.08
  5. Step 5: Solve for x
    x = 96,436,063.08/12,884.70
  6. Step 6: Final answer
    x = 7,484.54

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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.