Home / 12,731.20-19,091.93-6,884.62

Finding the Fourth Proportional to 12,731.20, 19,091.93 and 6,884.62

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Solution

The fourth proportional to 12,731.20, 19,091.93 and 6,884.62 is: 10,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.20 : 19,091.93 = 6,884.62 : x
  2. Step 2: Convert to fraction form
    12,731.20/19,091.93 = 6,884.62/x
  3. Step 3: Cross multiply
    12,731.20x = 19,091.93 × 6,884.62
  4. Step 4: Simplify right side
    12,731.20x = 131,440,600.96
  5. Step 5: Solve for x
    x = 131,440,600.96/12,731.20
  6. Step 6: Final answer
    x = 10,324.29

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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.