Home / 12,163.53-18,209.75-10,996.22

Finding the Fourth Proportional to 12,163.53, 18,209.75 and 10,996.22

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Solution

The fourth proportional to 12,163.53, 18,209.75 and 10,996.22 is: 16,462.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.53 : 18,209.75 = 10,996.22 : x
  2. Step 2: Convert to fraction form
    12,163.53/18,209.75 = 10,996.22/x
  3. Step 3: Cross multiply
    12,163.53x = 18,209.75 × 10,996.22
  4. Step 4: Simplify right side
    12,163.53x = 200,238,271.12
  5. Step 5: Solve for x
    x = 200,238,271.12/12,163.53
  6. Step 6: Final answer
    x = 16,462.18

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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.