Home / 7,939.58-11,909.50-3,011.54

Finding the Fourth Proportional to 7,939.58, 11,909.50 and 3,011.54

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Solution

The fourth proportional to 7,939.58, 11,909.50 and 3,011.54 is: 4,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.58 : 11,909.50 = 3,011.54 : x
  2. Step 2: Convert to fraction form
    7,939.58/11,909.50 = 3,011.54/x
  3. Step 3: Cross multiply
    7,939.58x = 11,909.50 × 3,011.54
  4. Step 4: Simplify right side
    7,939.58x = 35,865,935.63
  5. Step 5: Solve for x
    x = 35,865,935.63/7,939.58
  6. Step 6: Final answer
    x = 4,517.36

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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.