Home / 12,906.10-19,359.15-4,141.90

Finding the Fourth Proportional to 12,906.10, 19,359.15 and 4,141.90

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Solution

The fourth proportional to 12,906.10, 19,359.15 and 4,141.90 is: 6,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.10 : 19,359.15 = 4,141.90 : x
  2. Step 2: Convert to fraction form
    12,906.10/19,359.15 = 4,141.90/x
  3. Step 3: Cross multiply
    12,906.10x = 19,359.15 × 4,141.90
  4. Step 4: Simplify right side
    12,906.10x = 80,183,663.39
  5. Step 5: Solve for x
    x = 80,183,663.39/12,906.10
  6. Step 6: Final answer
    x = 6,212.85

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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.