Home / 14,789.11-20,408.92-8,074.66

Finding the Fourth Proportional to 14,789.11, 20,408.92 and 8,074.66

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Solution

The fourth proportional to 14,789.11, 20,408.92 and 8,074.66 is: 11,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.11 : 20,408.92 = 8,074.66 : x
  2. Step 2: Convert to fraction form
    14,789.11/20,408.92 = 8,074.66/x
  3. Step 3: Cross multiply
    14,789.11x = 20,408.92 × 8,074.66
  4. Step 4: Simplify right side
    14,789.11x = 164,795,089.97
  5. Step 5: Solve for x
    x = 164,795,089.97/14,789.11
  6. Step 6: Final answer
    x = 11,143.00

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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.