Home / 12,144.78-16,759.26-6,839.52

Finding the Fourth Proportional to 12,144.78, 16,759.26 and 6,839.52

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Solution

The fourth proportional to 12,144.78, 16,759.26 and 6,839.52 is: 9,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.78 : 16,759.26 = 6,839.52 : x
  2. Step 2: Convert to fraction form
    12,144.78/16,759.26 = 6,839.52/x
  3. Step 3: Cross multiply
    12,144.78x = 16,759.26 × 6,839.52
  4. Step 4: Simplify right side
    12,144.78x = 114,625,293.96
  5. Step 5: Solve for x
    x = 114,625,293.96/12,144.78
  6. Step 6: Final answer
    x = 9,438.24

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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.