Home / 11,891.70-16,418.61-10,628.73

Finding the Fourth Proportional to 11,891.70, 16,418.61 and 10,628.73

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Solution

The fourth proportional to 11,891.70, 16,418.61 and 10,628.73 is: 14,674.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.70 : 16,418.61 = 10,628.73 : x
  2. Step 2: Convert to fraction form
    11,891.70/16,418.61 = 10,628.73/x
  3. Step 3: Cross multiply
    11,891.70x = 16,418.61 × 10,628.73
  4. Step 4: Simplify right side
    11,891.70x = 174,508,972.67
  5. Step 5: Solve for x
    x = 174,508,972.67/11,891.70
  6. Step 6: Final answer
    x = 14,674.85

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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.