Home / 9,713.88-13,411.26-6,728.61

Finding the Fourth Proportional to 9,713.88, 13,411.26 and 6,728.61

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Solution

The fourth proportional to 9,713.88, 13,411.26 and 6,728.61 is: 9,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,713.88 : 13,411.26 = 6,728.61 : x
  2. Step 2: Convert to fraction form
    9,713.88/13,411.26 = 6,728.61/x
  3. Step 3: Cross multiply
    9,713.88x = 13,411.26 × 6,728.61
  4. Step 4: Simplify right side
    9,713.88x = 90,239,138.15
  5. Step 5: Solve for x
    x = 90,239,138.15/9,713.88
  6. Step 6: Final answer
    x = 9,289.71

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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.