Home / 12,186.94-16,826.79-8,007.34

Finding the Fourth Proportional to 12,186.94, 16,826.79 and 8,007.34

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Solution

The fourth proportional to 12,186.94, 16,826.79 and 8,007.34 is: 11,055.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.94 : 16,826.79 = 8,007.34 : x
  2. Step 2: Convert to fraction form
    12,186.94/16,826.79 = 8,007.34/x
  3. Step 3: Cross multiply
    12,186.94x = 16,826.79 × 8,007.34
  4. Step 4: Simplify right side
    12,186.94x = 134,737,828.64
  5. Step 5: Solve for x
    x = 134,737,828.64/12,186.94
  6. Step 6: Final answer
    x = 11,055.92

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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.