Home / 11,936.40-16,470.40-6,899.64

Finding the Fourth Proportional to 11,936.40, 16,470.40 and 6,899.64

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Solution

The fourth proportional to 11,936.40, 16,470.40 and 6,899.64 is: 9,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,936.40 : 16,470.40 = 6,899.64 : x
  2. Step 2: Convert to fraction form
    11,936.40/16,470.40 = 6,899.64/x
  3. Step 3: Cross multiply
    11,936.40x = 16,470.40 × 6,899.64
  4. Step 4: Simplify right side
    11,936.40x = 113,639,830.66
  5. Step 5: Solve for x
    x = 113,639,830.66/11,936.40
  6. Step 6: Final answer
    x = 9,520.44

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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.