Home / 9,187.96-12,685.32-6,321.52

Finding the Fourth Proportional to 9,187.96, 12,685.32 and 6,321.52

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Solution

The fourth proportional to 9,187.96, 12,685.32 and 6,321.52 is: 8,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.96 : 12,685.32 = 6,321.52 : x
  2. Step 2: Convert to fraction form
    9,187.96/12,685.32 = 6,321.52/x
  3. Step 3: Cross multiply
    9,187.96x = 12,685.32 × 6,321.52
  4. Step 4: Simplify right side
    9,187.96x = 80,190,504.09
  5. Step 5: Solve for x
    x = 80,190,504.09/9,187.96
  6. Step 6: Final answer
    x = 8,727.78

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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.