Home / 11,905.80-16,429.77-6,600.30

Finding the Fourth Proportional to 11,905.80, 16,429.77 and 6,600.30

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Solution

The fourth proportional to 11,905.80, 16,429.77 and 6,600.30 is: 9,108.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.80 : 16,429.77 = 6,600.30 : x
  2. Step 2: Convert to fraction form
    11,905.80/16,429.77 = 6,600.30/x
  3. Step 3: Cross multiply
    11,905.80x = 16,429.77 × 6,600.30
  4. Step 4: Simplify right side
    11,905.80x = 108,441,410.93
  5. Step 5: Solve for x
    x = 108,441,410.93/11,905.80
  6. Step 6: Final answer
    x = 9,108.28

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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.