Home / 12,550.75-18,819.69-6,630.81

Finding the Fourth Proportional to 12,550.75, 18,819.69 and 6,630.81

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Solution

The fourth proportional to 12,550.75, 18,819.69 and 6,630.81 is: 9,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.75 : 18,819.69 = 6,630.81 : x
  2. Step 2: Convert to fraction form
    12,550.75/18,819.69 = 6,630.81/x
  3. Step 3: Cross multiply
    12,550.75x = 18,819.69 × 6,630.81
  4. Step 4: Simplify right side
    12,550.75x = 124,789,836.37
  5. Step 5: Solve for x
    x = 124,789,836.37/12,550.75
  6. Step 6: Final answer
    x = 9,942.82

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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.