Home / 12,912.04-19,366.22-4,145.82

Finding the Fourth Proportional to 12,912.04, 19,366.22 and 4,145.82

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Solution

The fourth proportional to 12,912.04, 19,366.22 and 4,145.82 is: 6,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.04 : 19,366.22 = 4,145.82 : x
  2. Step 2: Convert to fraction form
    12,912.04/19,366.22 = 4,145.82/x
  3. Step 3: Cross multiply
    12,912.04x = 19,366.22 × 4,145.82
  4. Step 4: Simplify right side
    12,912.04x = 80,288,799.94
  5. Step 5: Solve for x
    x = 80,288,799.94/12,912.04
  6. Step 6: Final answer
    x = 6,218.13

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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.