Home / 12,091.84-18,141.12-6,901.36

Finding the Fourth Proportional to 12,091.84, 18,141.12 and 6,901.36

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Solution

The fourth proportional to 12,091.84, 18,141.12 and 6,901.36 is: 10,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.84 : 18,141.12 = 6,901.36 : x
  2. Step 2: Convert to fraction form
    12,091.84/18,141.12 = 6,901.36/x
  3. Step 3: Cross multiply
    12,091.84x = 18,141.12 × 6,901.36
  4. Step 4: Simplify right side
    12,091.84x = 125,198,399.92
  5. Step 5: Solve for x
    x = 125,198,399.92/12,091.84
  6. Step 6: Final answer
    x = 10,353.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.