Home / 12,757.12-19,131.26-4,857.73

Finding the Fourth Proportional to 12,757.12, 19,131.26 and 4,857.73

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Solution

The fourth proportional to 12,757.12, 19,131.26 and 4,857.73 is: 7,284.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757.12 : 19,131.26 = 4,857.73 : x
  2. Step 2: Convert to fraction form
    12,757.12/19,131.26 = 4,857.73/x
  3. Step 3: Cross multiply
    12,757.12x = 19,131.26 × 4,857.73
  4. Step 4: Simplify right side
    12,757.12x = 92,934,423.52
  5. Step 5: Solve for x
    x = 92,934,423.52/12,757.12
  6. Step 6: Final answer
    x = 7,284.91

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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.