Home / 11,928.96-17,885.21-4,808.79

Finding the Fourth Proportional to 11,928.96, 17,885.21 and 4,808.79

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Solution

The fourth proportional to 11,928.96, 17,885.21 and 4,808.79 is: 7,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.96 : 17,885.21 = 4,808.79 : x
  2. Step 2: Convert to fraction form
    11,928.96/17,885.21 = 4,808.79/x
  3. Step 3: Cross multiply
    11,928.96x = 17,885.21 × 4,808.79
  4. Step 4: Simplify right side
    11,928.96x = 86,006,194.95
  5. Step 5: Solve for x
    x = 86,006,194.95/11,928.96
  6. Step 6: Final answer
    x = 7,209.87

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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.