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Finding the Fourth Proportional to 12,144.98, 16,760.14 and 6,839.88

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Solution

The fourth proportional to 12,144.98, 16,760.14 and 6,839.88 is: 9,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.98 : 16,760.14 = 6,839.88 : x
  2. Step 2: Convert to fraction form
    12,144.98/16,760.14 = 6,839.88/x
  3. Step 3: Cross multiply
    12,144.98x = 16,760.14 × 6,839.88
  4. Step 4: Simplify right side
    12,144.98x = 114,637,346.38
  5. Step 5: Solve for x
    x = 114,637,346.38/12,144.98
  6. Step 6: Final answer
    x = 9,439.07

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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.