Home / 11,991.42-17,989.56-4,596.12

Finding the Fourth Proportional to 11,991.42, 17,989.56 and 4,596.12

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Solution

The fourth proportional to 11,991.42, 17,989.56 and 4,596.12 is: 6,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.42 : 17,989.56 = 4,596.12 : x
  2. Step 2: Convert to fraction form
    11,991.42/17,989.56 = 4,596.12/x
  3. Step 3: Cross multiply
    11,991.42x = 17,989.56 × 4,596.12
  4. Step 4: Simplify right side
    11,991.42x = 82,682,176.51
  5. Step 5: Solve for x
    x = 82,682,176.51/11,991.42
  6. Step 6: Final answer
    x = 6,895.11

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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.