Home / 11,145.04-16,719-3,354.64

Finding the Fourth Proportional to 11,145.04, 16,719 and 3,354.64

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Solution

The fourth proportional to 11,145.04, 16,719 and 3,354.64 is: 5,032.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.04 : 16,719 = 3,354.64 : x
  2. Step 2: Convert to fraction form
    11,145.04/16,719 = 3,354.64/x
  3. Step 3: Cross multiply
    11,145.04x = 16,719 × 3,354.64
  4. Step 4: Simplify right side
    11,145.04x = 56,086,226.16
  5. Step 5: Solve for x
    x = 56,086,226.16/11,145.04
  6. Step 6: Final answer
    x = 5,032.39

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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.