Home / 12,249.72-16,904.70-6,660.72

Finding the Fourth Proportional to 12,249.72, 16,904.70 and 6,660.72

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Solution

The fourth proportional to 12,249.72, 16,904.70 and 6,660.72 is: 9,191.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.72 : 16,904.70 = 6,660.72 : x
  2. Step 2: Convert to fraction form
    12,249.72/16,904.70 = 6,660.72/x
  3. Step 3: Cross multiply
    12,249.72x = 16,904.70 × 6,660.72
  4. Step 4: Simplify right side
    12,249.72x = 112,597,473.38
  5. Step 5: Solve for x
    x = 112,597,473.38/12,249.72
  6. Step 6: Final answer
    x = 9,191.84

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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.