Home / 18,766.29-25,893.21-11,211.42

Finding the Fourth Proportional to 18,766.29, 25,893.21 and 11,211.42

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Solution

The fourth proportional to 18,766.29, 25,893.21 and 11,211.42 is: 15,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.29 : 25,893.21 = 11,211.42 : x
  2. Step 2: Convert to fraction form
    18,766.29/25,893.21 = 11,211.42/x
  3. Step 3: Cross multiply
    18,766.29x = 25,893.21 × 11,211.42
  4. Step 4: Simplify right side
    18,766.29x = 290,299,652.46
  5. Step 5: Solve for x
    x = 290,299,652.46/18,766.29
  6. Step 6: Final answer
    x = 15,469.21

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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.