Home / 11,862.50-17,793.78-4,071.92

Finding the Fourth Proportional to 11,862.50, 17,793.78 and 4,071.92

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Solution

The fourth proportional to 11,862.50, 17,793.78 and 4,071.92 is: 6,107.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.50 : 17,793.78 = 4,071.92 : x
  2. Step 2: Convert to fraction form
    11,862.50/17,793.78 = 4,071.92/x
  3. Step 3: Cross multiply
    11,862.50x = 17,793.78 × 4,071.92
  4. Step 4: Simplify right side
    11,862.50x = 72,454,848.66
  5. Step 5: Solve for x
    x = 72,454,848.66/11,862.50
  6. Step 6: Final answer
    x = 6,107.89

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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.