Home / 11,905.62-16,429.76-6,600.31

Finding the Fourth Proportional to 11,905.62, 16,429.76 and 6,600.31

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Solution

The fourth proportional to 11,905.62, 16,429.76 and 6,600.31 is: 9,108.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.62 : 16,429.76 = 6,600.31 : x
  2. Step 2: Convert to fraction form
    11,905.62/16,429.76 = 6,600.31/x
  3. Step 3: Cross multiply
    11,905.62x = 16,429.76 × 6,600.31
  4. Step 4: Simplify right side
    11,905.62x = 108,441,509.23
  5. Step 5: Solve for x
    x = 108,441,509.23/11,905.62
  6. Step 6: Final answer
    x = 9,108.43

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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.