Home / 11,145.60-16,718.40-3,247.74

Finding the Fourth Proportional to 11,145.60, 16,718.40 and 3,247.74

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Solution

The fourth proportional to 11,145.60, 16,718.40 and 3,247.74 is: 4,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.60 : 16,718.40 = 3,247.74 : x
  2. Step 2: Convert to fraction form
    11,145.60/16,718.40 = 3,247.74/x
  3. Step 3: Cross multiply
    11,145.60x = 16,718.40 × 3,247.74
  4. Step 4: Simplify right side
    11,145.60x = 54,297,016.42
  5. Step 5: Solve for x
    x = 54,297,016.42/11,145.60
  6. Step 6: Final answer
    x = 4,871.61

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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.