Home / 13,515.08-18,651.63-7,546.73

Finding the Fourth Proportional to 13,515.08, 18,651.63 and 7,546.73

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Solution

The fourth proportional to 13,515.08, 18,651.63 and 7,546.73 is: 10,414.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.08 : 18,651.63 = 7,546.73 : x
  2. Step 2: Convert to fraction form
    13,515.08/18,651.63 = 7,546.73/x
  3. Step 3: Cross multiply
    13,515.08x = 18,651.63 × 7,546.73
  4. Step 4: Simplify right side
    13,515.08x = 140,758,815.67
  5. Step 5: Solve for x
    x = 140,758,815.67/13,515.08
  6. Step 6: Final answer
    x = 10,414.95

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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.