Home / 18,540.64-25,563.12-12,243.04

Finding the Fourth Proportional to 18,540.64, 25,563.12 and 12,243.04

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Solution

The fourth proportional to 18,540.64, 25,563.12 and 12,243.04 is: 16,880.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.64 : 25,563.12 = 12,243.04 : x
  2. Step 2: Convert to fraction form
    18,540.64/25,563.12 = 12,243.04/x
  3. Step 3: Cross multiply
    18,540.64x = 25,563.12 × 12,243.04
  4. Step 4: Simplify right side
    18,540.64x = 312,970,300.68
  5. Step 5: Solve for x
    x = 312,970,300.68/18,540.64
  6. Step 6: Final answer
    x = 16,880.23

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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.