Home / 12,198.09-16,836.15-7,727.96

Finding the Fourth Proportional to 12,198.09, 16,836.15 and 7,727.96

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Solution

The fourth proportional to 12,198.09, 16,836.15 and 7,727.96 is: 10,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.09 : 16,836.15 = 7,727.96 : x
  2. Step 2: Convert to fraction form
    12,198.09/16,836.15 = 7,727.96/x
  3. Step 3: Cross multiply
    12,198.09x = 16,836.15 × 7,727.96
  4. Step 4: Simplify right side
    12,198.09x = 130,109,093.75
  5. Step 5: Solve for x
    x = 130,109,093.75/12,198.09
  6. Step 6: Final answer
    x = 10,666.35

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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.