Home / 12,105.88-16,707.67-6,800.70

Finding the Fourth Proportional to 12,105.88, 16,707.67 and 6,800.70

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Solution

The fourth proportional to 12,105.88, 16,707.67 and 6,800.70 is: 9,385.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.88 : 16,707.67 = 6,800.70 : x
  2. Step 2: Convert to fraction form
    12,105.88/16,707.67 = 6,800.70/x
  3. Step 3: Cross multiply
    12,105.88x = 16,707.67 × 6,800.70
  4. Step 4: Simplify right side
    12,105.88x = 113,623,834.37
  5. Step 5: Solve for x
    x = 113,623,834.37/12,105.88
  6. Step 6: Final answer
    x = 9,385.84

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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.