Home / 18,447.24-25,441.38-12,153

Finding the Fourth Proportional to 18,447.24, 25,441.38 and 12,153

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Solution

The fourth proportional to 18,447.24, 25,441.38 and 12,153 is: 16,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.24 : 25,441.38 = 12,153 : x
  2. Step 2: Convert to fraction form
    18,447.24/25,441.38 = 12,153/x
  3. Step 3: Cross multiply
    18,447.24x = 25,441.38 × 12,153
  4. Step 4: Simplify right side
    18,447.24x = 309,189,091.14
  5. Step 5: Solve for x
    x = 309,189,091.14/18,447.24
  6. Step 6: Final answer
    x = 16,760.72

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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.