Home / 7,479.54-11,221.14-3,781.69

Finding the Fourth Proportional to 7,479.54, 11,221.14 and 3,781.69

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Solution

The fourth proportional to 7,479.54, 11,221.14 and 3,781.69 is: 5,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.54 : 11,221.14 = 3,781.69 : x
  2. Step 2: Convert to fraction form
    7,479.54/11,221.14 = 3,781.69/x
  3. Step 3: Cross multiply
    7,479.54x = 11,221.14 × 3,781.69
  4. Step 4: Simplify right side
    7,479.54x = 42,434,872.93
  5. Step 5: Solve for x
    x = 42,434,872.93/7,479.54
  6. Step 6: Final answer
    x = 5,673.46

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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.