Home / 12,790.85-19,186.88-4,026.38

Finding the Fourth Proportional to 12,790.85, 19,186.88 and 4,026.38

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Solution

The fourth proportional to 12,790.85, 19,186.88 and 4,026.38 is: 6,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.85 : 19,186.88 = 4,026.38 : x
  2. Step 2: Convert to fraction form
    12,790.85/19,186.88 = 4,026.38/x
  3. Step 3: Cross multiply
    12,790.85x = 19,186.88 × 4,026.38
  4. Step 4: Simplify right side
    12,790.85x = 77,253,553.83
  5. Step 5: Solve for x
    x = 77,253,553.83/12,790.85
  6. Step 6: Final answer
    x = 6,039.75

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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.