Home / 11,878.57-17,814.82-4,480.84

Finding the Fourth Proportional to 11,878.57, 17,814.82 and 4,480.84

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Solution

The fourth proportional to 11,878.57, 17,814.82 and 4,480.84 is: 6,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.57 : 17,814.82 = 4,480.84 : x
  2. Step 2: Convert to fraction form
    11,878.57/17,814.82 = 4,480.84/x
  3. Step 3: Cross multiply
    11,878.57x = 17,814.82 × 4,480.84
  4. Step 4: Simplify right side
    11,878.57x = 79,825,358.05
  5. Step 5: Solve for x
    x = 79,825,358.05/11,878.57
  6. Step 6: Final answer
    x = 6,720.12

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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.