Home / 11,718.42-16,171.37-6,340.84

Finding the Fourth Proportional to 11,718.42, 16,171.37 and 6,340.84

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Solution

The fourth proportional to 11,718.42, 16,171.37 and 6,340.84 is: 8,750.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.42 : 16,171.37 = 6,340.84 : x
  2. Step 2: Convert to fraction form
    11,718.42/16,171.37 = 6,340.84/x
  3. Step 3: Cross multiply
    11,718.42x = 16,171.37 × 6,340.84
  4. Step 4: Simplify right side
    11,718.42x = 102,540,069.75
  5. Step 5: Solve for x
    x = 102,540,069.75/11,718.42
  6. Step 6: Final answer
    x = 8,750.33

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Double scale
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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.