Home / 9,919.26-13,694.13-6,749.64

Finding the Fourth Proportional to 9,919.26, 13,694.13 and 6,749.64

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Solution

The fourth proportional to 9,919.26, 13,694.13 and 6,749.64 is: 9,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.26 : 13,694.13 = 6,749.64 : x
  2. Step 2: Convert to fraction form
    9,919.26/13,694.13 = 6,749.64/x
  3. Step 3: Cross multiply
    9,919.26x = 13,694.13 × 6,749.64
  4. Step 4: Simplify right side
    9,919.26x = 92,430,447.61
  5. Step 5: Solve for x
    x = 92,430,447.61/9,919.26
  6. Step 6: Final answer
    x = 9,318.28

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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.