Home / 12,144.45-16,759.01-6,839.15

Finding the Fourth Proportional to 12,144.45, 16,759.01 and 6,839.15

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Solution

The fourth proportional to 12,144.45, 16,759.01 and 6,839.15 is: 9,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.45 : 16,759.01 = 6,839.15 : x
  2. Step 2: Convert to fraction form
    12,144.45/16,759.01 = 6,839.15/x
  3. Step 3: Cross multiply
    12,144.45x = 16,759.01 × 6,839.15
  4. Step 4: Simplify right side
    12,144.45x = 114,617,349.05
  5. Step 5: Solve for x
    x = 114,617,349.05/12,144.45
  6. Step 6: Final answer
    x = 9,437.84

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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.