Home / 11,939.78-16,476.41-6,634.94

Finding the Fourth Proportional to 11,939.78, 16,476.41 and 6,634.94

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Solution

The fourth proportional to 11,939.78, 16,476.41 and 6,634.94 is: 9,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.78 : 16,476.41 = 6,634.94 : x
  2. Step 2: Convert to fraction form
    11,939.78/16,476.41 = 6,634.94/x
  3. Step 3: Cross multiply
    11,939.78x = 16,476.41 × 6,634.94
  4. Step 4: Simplify right side
    11,939.78x = 109,319,925.97
  5. Step 5: Solve for x
    x = 109,319,925.97/11,939.78
  6. Step 6: Final answer
    x = 9,155.94

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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.