Home / 12,115.98-16,716.20-7,337.73

Finding the Fourth Proportional to 12,115.98, 16,716.20 and 7,337.73

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Solution

The fourth proportional to 12,115.98, 16,716.20 and 7,337.73 is: 10,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.98 : 16,716.20 = 7,337.73 : x
  2. Step 2: Convert to fraction form
    12,115.98/16,716.20 = 7,337.73/x
  3. Step 3: Cross multiply
    12,115.98x = 16,716.20 × 7,337.73
  4. Step 4: Simplify right side
    12,115.98x = 122,658,891.32
  5. Step 5: Solve for x
    x = 122,658,891.32/12,115.98
  6. Step 6: Final answer
    x = 10,123.73

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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.