Home / 11,936.18-16,470.61-6,629.78

Finding the Fourth Proportional to 11,936.18, 16,470.61 and 6,629.78

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Solution

The fourth proportional to 11,936.18, 16,470.61 and 6,629.78 is: 9,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,936.18 : 16,470.61 = 6,629.78 : x
  2. Step 2: Convert to fraction form
    11,936.18/16,470.61 = 6,629.78/x
  3. Step 3: Cross multiply
    11,936.18x = 16,470.61 × 6,629.78
  4. Step 4: Simplify right side
    11,936.18x = 109,196,520.77
  5. Step 5: Solve for x
    x = 109,196,520.77/11,936.18
  6. Step 6: Final answer
    x = 9,148.36

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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.