Home / 12,139.12-18,241.62-6,596.56

Finding the Fourth Proportional to 12,139.12, 18,241.62 and 6,596.56

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Solution

The fourth proportional to 12,139.12, 18,241.62 and 6,596.56 is: 9,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139.12 : 18,241.62 = 6,596.56 : x
  2. Step 2: Convert to fraction form
    12,139.12/18,241.62 = 6,596.56/x
  3. Step 3: Cross multiply
    12,139.12x = 18,241.62 × 6,596.56
  4. Step 4: Simplify right side
    12,139.12x = 120,331,940.83
  5. Step 5: Solve for x
    x = 120,331,940.83/12,139.12
  6. Step 6: Final answer
    x = 9,912.74

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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.