Home / 11,939.40-16,473.78-6,633.90

Finding the Fourth Proportional to 11,939.40, 16,473.78 and 6,633.90

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Solution

The fourth proportional to 11,939.40, 16,473.78 and 6,633.90 is: 9,153.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.40 : 16,473.78 = 6,633.90 : x
  2. Step 2: Convert to fraction form
    11,939.40/16,473.78 = 6,633.90/x
  3. Step 3: Cross multiply
    11,939.40x = 16,473.78 × 6,633.90
  4. Step 4: Simplify right side
    11,939.40x = 109,285,409.14
  5. Step 5: Solve for x
    x = 109,285,409.14/11,939.40
  6. Step 6: Final answer
    x = 9,153.34

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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.