Home / 11,944.98-16,479.81-8,212.50

Finding the Fourth Proportional to 11,944.98, 16,479.81 and 8,212.50

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Solution

The fourth proportional to 11,944.98, 16,479.81 and 8,212.50 is: 11,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,944.98 : 16,479.81 = 8,212.50 : x
  2. Step 2: Convert to fraction form
    11,944.98/16,479.81 = 8,212.50/x
  3. Step 3: Cross multiply
    11,944.98x = 16,479.81 × 8,212.50
  4. Step 4: Simplify right side
    11,944.98x = 135,340,439.63
  5. Step 5: Solve for x
    x = 135,340,439.63/11,944.98
  6. Step 6: Final answer
    x = 11,330.32

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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.