Home / 12,449.75-17,180.66-6,860.75

Finding the Fourth Proportional to 12,449.75, 17,180.66 and 6,860.75

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Solution

The fourth proportional to 12,449.75, 17,180.66 and 6,860.75 is: 9,467.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.75 : 17,180.66 = 6,860.75 : x
  2. Step 2: Convert to fraction form
    12,449.75/17,180.66 = 6,860.75/x
  3. Step 3: Cross multiply
    12,449.75x = 17,180.66 × 6,860.75
  4. Step 4: Simplify right side
    12,449.75x = 117,872,178.79
  5. Step 5: Solve for x
    x = 117,872,178.79/12,449.75
  6. Step 6: Final answer
    x = 9,467.84

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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.