Home / 7,286.80-10,913.76-5,105.27

Finding the Fourth Proportional to 7,286.80, 10,913.76 and 5,105.27

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Solution

The fourth proportional to 7,286.80, 10,913.76 and 5,105.27 is: 7,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.80 : 10,913.76 = 5,105.27 : x
  2. Step 2: Convert to fraction form
    7,286.80/10,913.76 = 5,105.27/x
  3. Step 3: Cross multiply
    7,286.80x = 10,913.76 × 5,105.27
  4. Step 4: Simplify right side
    7,286.80x = 55,717,611.42
  5. Step 5: Solve for x
    x = 55,717,611.42/7,286.80
  6. Step 6: Final answer
    x = 7,646.38

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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.