Home / 18,190.89-25,081.96-12,451.11

Finding the Fourth Proportional to 18,190.89, 25,081.96 and 12,451.11

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Solution

The fourth proportional to 18,190.89, 25,081.96 and 12,451.11 is: 17,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.89 : 25,081.96 = 12,451.11 : x
  2. Step 2: Convert to fraction form
    18,190.89/25,081.96 = 12,451.11/x
  3. Step 3: Cross multiply
    18,190.89x = 25,081.96 × 12,451.11
  4. Step 4: Simplify right side
    18,190.89x = 312,298,242.98
  5. Step 5: Solve for x
    x = 312,298,242.98/18,190.89
  6. Step 6: Final answer
    x = 17,167.84

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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.