Home / 12,011.31-18,016.92-3,245.58

Finding the Fourth Proportional to 12,011.31, 18,016.92 and 3,245.58

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Solution

The fourth proportional to 12,011.31, 18,016.92 and 3,245.58 is: 4,868.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.31 : 18,016.92 = 3,245.58 : x
  2. Step 2: Convert to fraction form
    12,011.31/18,016.92 = 3,245.58/x
  3. Step 3: Cross multiply
    12,011.31x = 18,016.92 × 3,245.58
  4. Step 4: Simplify right side
    12,011.31x = 58,475,355.21
  5. Step 5: Solve for x
    x = 58,475,355.21/12,011.31
  6. Step 6: Final answer
    x = 4,868.36

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1.5x scale

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.