Home / 11,819.46-16,309.32-6,783.90

Finding the Fourth Proportional to 11,819.46, 16,309.32 and 6,783.90

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Solution

The fourth proportional to 11,819.46, 16,309.32 and 6,783.90 is: 9,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.46 : 16,309.32 = 6,783.90 : x
  2. Step 2: Convert to fraction form
    11,819.46/16,309.32 = 6,783.90/x
  3. Step 3: Cross multiply
    11,819.46x = 16,309.32 × 6,783.90
  4. Step 4: Simplify right side
    11,819.46x = 110,640,795.95
  5. Step 5: Solve for x
    x = 110,640,795.95/11,819.46
  6. Step 6: Final answer
    x = 9,360.90

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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.