Home / 12,476.75-17,217.84-6,811.47

Finding the Fourth Proportional to 12,476.75, 17,217.84 and 6,811.47

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Solution

The fourth proportional to 12,476.75, 17,217.84 and 6,811.47 is: 9,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.75 : 17,217.84 = 6,811.47 : x
  2. Step 2: Convert to fraction form
    12,476.75/17,217.84 = 6,811.47/x
  3. Step 3: Cross multiply
    12,476.75x = 17,217.84 × 6,811.47
  4. Step 4: Simplify right side
    12,476.75x = 117,278,800.62
  5. Step 5: Solve for x
    x = 117,278,800.62/12,476.75
  6. Step 6: Final answer
    x = 9,399.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.