Home / 12,186.98-16,817.89-6,882.02

Finding the Fourth Proportional to 12,186.98, 16,817.89 and 6,882.02

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Solution

The fourth proportional to 12,186.98, 16,817.89 and 6,882.02 is: 9,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.98 : 16,817.89 = 6,882.02 : x
  2. Step 2: Convert to fraction form
    12,186.98/16,817.89 = 6,882.02/x
  3. Step 3: Cross multiply
    12,186.98x = 16,817.89 × 6,882.02
  4. Step 4: Simplify right side
    12,186.98x = 115,741,020.93
  5. Step 5: Solve for x
    x = 115,741,020.93/12,186.98
  6. Step 6: Final answer
    x = 9,497.10

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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.