Home / 9,910.30-13,685.46-6,379.64

Finding the Fourth Proportional to 9,910.30, 13,685.46 and 6,379.64

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Solution

The fourth proportional to 9,910.30, 13,685.46 and 6,379.64 is: 8,809.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,910.30 : 13,685.46 = 6,379.64 : x
  2. Step 2: Convert to fraction form
    9,910.30/13,685.46 = 6,379.64/x
  3. Step 3: Cross multiply
    9,910.30x = 13,685.46 × 6,379.64
  4. Step 4: Simplify right side
    9,910.30x = 87,308,308.03
  5. Step 5: Solve for x
    x = 87,308,308.03/9,910.30
  6. Step 6: Final answer
    x = 8,809.86

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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.