Home / 12,144.18-16,759.28-6,839.18

Finding the Fourth Proportional to 12,144.18, 16,759.28 and 6,839.18

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Solution

The fourth proportional to 12,144.18, 16,759.28 and 6,839.18 is: 9,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.18 : 16,759.28 = 6,839.18 : x
  2. Step 2: Convert to fraction form
    12,144.18/16,759.28 = 6,839.18/x
  3. Step 3: Cross multiply
    12,144.18x = 16,759.28 × 6,839.18
  4. Step 4: Simplify right side
    12,144.18x = 114,619,614.60
  5. Step 5: Solve for x
    x = 114,619,614.60/12,144.18
  6. Step 6: Final answer
    x = 9,438.23

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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.