Home / 12,144.00-16,760.32-6,839.84

Finding the Fourth Proportional to 12,144.00, 16,760.32 and 6,839.84

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Solution

The fourth proportional to 12,144.00, 16,760.32 and 6,839.84 is: 9,439.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.00 : 16,760.32 = 6,839.84 : x
  2. Step 2: Convert to fraction form
    12,144.00/16,760.32 = 6,839.84/x
  3. Step 3: Cross multiply
    12,144.00x = 16,760.32 × 6,839.84
  4. Step 4: Simplify right side
    12,144.00x = 114,637,931.95
  5. Step 5: Solve for x
    x = 114,637,931.95/12,144.00
  6. Step 6: Final answer
    x = 9,439.88

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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.