Home / 12,568.92-18,837.20-6,645.56

Finding the Fourth Proportional to 12,568.92, 18,837.20 and 6,645.56

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Solution

The fourth proportional to 12,568.92, 18,837.20 and 6,645.56 is: 9,959.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.92 : 18,837.20 = 6,645.56 : x
  2. Step 2: Convert to fraction form
    12,568.92/18,837.20 = 6,645.56/x
  3. Step 3: Cross multiply
    12,568.92x = 18,837.20 × 6,645.56
  4. Step 4: Simplify right side
    12,568.92x = 125,183,742.83
  5. Step 5: Solve for x
    x = 125,183,742.83/12,568.92
  6. Step 6: Final answer
    x = 9,959.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.