Home / 11,868.11-17,769.72-8,539.68

Finding the Fourth Proportional to 11,868.11, 17,769.72 and 8,539.68

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Solution

The fourth proportional to 11,868.11, 17,769.72 and 8,539.68 is: 12,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.11 : 17,769.72 = 8,539.68 : x
  2. Step 2: Convert to fraction form
    11,868.11/17,769.72 = 8,539.68/x
  3. Step 3: Cross multiply
    11,868.11x = 17,769.72 × 8,539.68
  4. Step 4: Simplify right side
    11,868.11x = 151,747,722.49
  5. Step 5: Solve for x
    x = 151,747,722.49/11,868.11
  6. Step 6: Final answer
    x = 12,786.17

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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.