Home / 13,627.31-20,391.62-11,265.35

Finding the Fourth Proportional to 13,627.31, 20,391.62 and 11,265.35

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Solution

The fourth proportional to 13,627.31, 20,391.62 and 11,265.35 is: 16,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.31 : 20,391.62 = 11,265.35 : x
  2. Step 2: Convert to fraction form
    13,627.31/20,391.62 = 11,265.35/x
  3. Step 3: Cross multiply
    13,627.31x = 20,391.62 × 11,265.35
  4. Step 4: Simplify right side
    13,627.31x = 229,718,578.08
  5. Step 5: Solve for x
    x = 229,718,578.08/13,627.31
  6. Step 6: Final answer
    x = 16,857.23

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1.5x scale

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.