Home / 7,440.96-11,105.10-6,813.42

Finding the Fourth Proportional to 7,440.96, 11,105.10 and 6,813.42

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Solution

The fourth proportional to 7,440.96, 11,105.10 and 6,813.42 is: 10,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.96 : 11,105.10 = 6,813.42 : x
  2. Step 2: Convert to fraction form
    7,440.96/11,105.10 = 6,813.42/x
  3. Step 3: Cross multiply
    7,440.96x = 11,105.10 × 6,813.42
  4. Step 4: Simplify right side
    7,440.96x = 75,663,668.80
  5. Step 5: Solve for x
    x = 75,663,668.80/7,440.96
  6. Step 6: Final answer
    x = 10,168.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.