Home / 13,766.33-18,979.88-11,874.24

Finding the Fourth Proportional to 13,766.33, 18,979.88 and 11,874.24

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Solution

The fourth proportional to 13,766.33, 18,979.88 and 11,874.24 is: 16,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.33 : 18,979.88 = 11,874.24 : x
  2. Step 2: Convert to fraction form
    13,766.33/18,979.88 = 11,874.24/x
  3. Step 3: Cross multiply
    13,766.33x = 18,979.88 × 11,874.24
  4. Step 4: Simplify right side
    13,766.33x = 225,371,590.92
  5. Step 5: Solve for x
    x = 225,371,590.92/13,766.33
  6. Step 6: Final answer
    x = 16,371.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.