Home / 11,939.99-16,477.07-6,634.76

Finding the Fourth Proportional to 11,939.99, 16,477.07 and 6,634.76

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Solution

The fourth proportional to 11,939.99, 16,477.07 and 6,634.76 is: 9,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.99 : 16,477.07 = 6,634.76 : x
  2. Step 2: Convert to fraction form
    11,939.99/16,477.07 = 6,634.76/x
  3. Step 3: Cross multiply
    11,939.99x = 16,477.07 × 6,634.76
  4. Step 4: Simplify right side
    11,939.99x = 109,321,289.39
  5. Step 5: Solve for x
    x = 109,321,289.39/11,939.99
  6. Step 6: Final answer
    x = 9,155.90

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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.