Home / 18,540.12-25,573.59-12,167.13

Finding the Fourth Proportional to 18,540.12, 25,573.59 and 12,167.13

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Solution

The fourth proportional to 18,540.12, 25,573.59 and 12,167.13 is: 16,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.12 : 25,573.59 = 12,167.13 : x
  2. Step 2: Convert to fraction form
    18,540.12/25,573.59 = 12,167.13/x
  3. Step 3: Cross multiply
    18,540.12x = 25,573.59 × 12,167.13
  4. Step 4: Simplify right side
    18,540.12x = 311,157,194.10
  5. Step 5: Solve for x
    x = 311,157,194.10/18,540.12
  6. Step 6: Final answer
    x = 16,782.91

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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.