Home / 14,071.18-19,418.92-8,103.78

Finding the Fourth Proportional to 14,071.18, 19,418.92 and 8,103.78

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Solution

The fourth proportional to 14,071.18, 19,418.92 and 8,103.78 is: 11,183.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.18 : 19,418.92 = 8,103.78 : x
  2. Step 2: Convert to fraction form
    14,071.18/19,418.92 = 8,103.78/x
  3. Step 3: Cross multiply
    14,071.18x = 19,418.92 × 8,103.78
  4. Step 4: Simplify right side
    14,071.18x = 157,366,655.52
  5. Step 5: Solve for x
    x = 157,366,655.52/14,071.18
  6. Step 6: Final answer
    x = 11,183.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.