Home / 11,680.68-16,117.92-6,645.54

Finding the Fourth Proportional to 11,680.68, 16,117.92 and 6,645.54

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Solution

The fourth proportional to 11,680.68, 16,117.92 and 6,645.54 is: 9,170.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.68 : 16,117.92 = 6,645.54 : x
  2. Step 2: Convert to fraction form
    11,680.68/16,117.92 = 6,645.54/x
  3. Step 3: Cross multiply
    11,680.68x = 16,117.92 × 6,645.54
  4. Step 4: Simplify right side
    11,680.68x = 107,112,282.08
  5. Step 5: Solve for x
    x = 107,112,282.08/11,680.68
  6. Step 6: Final answer
    x = 9,170.04

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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.