Home / 7,419.42-11,127.38-2,153.03

Finding the Fourth Proportional to 7,419.42, 11,127.38 and 2,153.03

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Solution

The fourth proportional to 7,419.42, 11,127.38 and 2,153.03 is: 3,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.42 : 11,127.38 = 2,153.03 : x
  2. Step 2: Convert to fraction form
    7,419.42/11,127.38 = 2,153.03/x
  3. Step 3: Cross multiply
    7,419.42x = 11,127.38 × 2,153.03
  4. Step 4: Simplify right side
    7,419.42x = 23,957,516.56
  5. Step 5: Solve for x
    x = 23,957,516.56/7,419.42
  6. Step 6: Final answer
    x = 3,229.03

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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.