Home / 11,992.80-16,548.36-6,686.84

Finding the Fourth Proportional to 11,992.80, 16,548.36 and 6,686.84

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Solution

The fourth proportional to 11,992.80, 16,548.36 and 6,686.84 is: 9,226.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.80 : 16,548.36 = 6,686.84 : x
  2. Step 2: Convert to fraction form
    11,992.80/16,548.36 = 6,686.84/x
  3. Step 3: Cross multiply
    11,992.80x = 16,548.36 × 6,686.84
  4. Step 4: Simplify right side
    11,992.80x = 110,656,235.58
  5. Step 5: Solve for x
    x = 110,656,235.58/11,992.80
  6. Step 6: Final answer
    x = 9,226.89

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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.