Home / 13,325.88-18,391.98-12,735.42

Finding the Fourth Proportional to 13,325.88, 18,391.98 and 12,735.42

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Solution

The fourth proportional to 13,325.88, 18,391.98 and 12,735.42 is: 17,577.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.88 : 18,391.98 = 12,735.42 : x
  2. Step 2: Convert to fraction form
    13,325.88/18,391.98 = 12,735.42/x
  3. Step 3: Cross multiply
    13,325.88x = 18,391.98 × 12,735.42
  4. Step 4: Simplify right side
    13,325.88x = 234,229,589.93
  5. Step 5: Solve for x
    x = 234,229,589.93/13,325.88
  6. Step 6: Final answer
    x = 17,577.04

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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.