Home / 11,874.12-17,810.10-3,109.92

Finding the Fourth Proportional to 11,874.12, 17,810.10 and 3,109.92

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Solution

The fourth proportional to 11,874.12, 17,810.10 and 3,109.92 is: 4,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.12 : 17,810.10 = 3,109.92 : x
  2. Step 2: Convert to fraction form
    11,874.12/17,810.10 = 3,109.92/x
  3. Step 3: Cross multiply
    11,874.12x = 17,810.10 × 3,109.92
  4. Step 4: Simplify right side
    11,874.12x = 55,387,986.19
  5. Step 5: Solve for x
    x = 55,387,986.19/11,874.12
  6. Step 6: Final answer
    x = 4,664.60

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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.