Home / 12,144.80-16,759.24-6,839.52

Finding the Fourth Proportional to 12,144.80, 16,759.24 and 6,839.52

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Solution

The fourth proportional to 12,144.80, 16,759.24 and 6,839.52 is: 9,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.80 : 16,759.24 = 6,839.52 : x
  2. Step 2: Convert to fraction form
    12,144.80/16,759.24 = 6,839.52/x
  3. Step 3: Cross multiply
    12,144.80x = 16,759.24 × 6,839.52
  4. Step 4: Simplify right side
    12,144.80x = 114,625,157.16
  5. Step 5: Solve for x
    x = 114,625,157.16/12,144.80
  6. Step 6: Final answer
    x = 9,438.21

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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.