Home / 12,108.15-16,709.49-6,803.33

Finding the Fourth Proportional to 12,108.15, 16,709.49 and 6,803.33

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Solution

The fourth proportional to 12,108.15, 16,709.49 and 6,803.33 is: 9,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.15 : 16,709.49 = 6,803.33 : x
  2. Step 2: Convert to fraction form
    12,108.15/16,709.49 = 6,803.33/x
  3. Step 3: Cross multiply
    12,108.15x = 16,709.49 × 6,803.33
  4. Step 4: Simplify right side
    12,108.15x = 113,680,091.05
  5. Step 5: Solve for x
    x = 113,680,091.05/12,108.15
  6. Step 6: Final answer
    x = 9,388.73

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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.