Home / 12,276.58-18,414.40-3,956.64

Finding the Fourth Proportional to 12,276.58, 18,414.40 and 3,956.64

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Solution

The fourth proportional to 12,276.58, 18,414.40 and 3,956.64 is: 5,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.58 : 18,414.40 = 3,956.64 : x
  2. Step 2: Convert to fraction form
    12,276.58/18,414.40 = 3,956.64/x
  3. Step 3: Cross multiply
    12,276.58x = 18,414.40 × 3,956.64
  4. Step 4: Simplify right side
    12,276.58x = 72,859,141.72
  5. Step 5: Solve for x
    x = 72,859,141.72/12,276.58
  6. Step 6: Final answer
    x = 5,934.81

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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.