Home / 11,904.27-17,856.45-3,138.95

Finding the Fourth Proportional to 11,904.27, 17,856.45 and 3,138.95

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Solution

The fourth proportional to 11,904.27, 17,856.45 and 3,138.95 is: 4,708.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.27 : 17,856.45 = 3,138.95 : x
  2. Step 2: Convert to fraction form
    11,904.27/17,856.45 = 3,138.95/x
  3. Step 3: Cross multiply
    11,904.27x = 17,856.45 × 3,138.95
  4. Step 4: Simplify right side
    11,904.27x = 56,050,548.37
  5. Step 5: Solve for x
    x = 56,050,548.37/11,904.27
  6. Step 6: Final answer
    x = 4,708.44

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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.