Home / 11,510.20-17,268.18-3,719.80

Finding the Fourth Proportional to 11,510.20, 17,268.18 and 3,719.80

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Solution

The fourth proportional to 11,510.20, 17,268.18 and 3,719.80 is: 5,580.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,510.20 : 17,268.18 = 3,719.80 : x
  2. Step 2: Convert to fraction form
    11,510.20/17,268.18 = 3,719.80/x
  3. Step 3: Cross multiply
    11,510.20x = 17,268.18 × 3,719.80
  4. Step 4: Simplify right side
    11,510.20x = 64,234,175.96
  5. Step 5: Solve for x
    x = 64,234,175.96/11,510.20
  6. Step 6: Final answer
    x = 5,580.63

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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.