Home / 12,245.10-18,338.46-9,451.40

Finding the Fourth Proportional to 12,245.10, 18,338.46 and 9,451.40

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Solution

The fourth proportional to 12,245.10, 18,338.46 and 9,451.40 is: 14,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.10 : 18,338.46 = 9,451.40 : x
  2. Step 2: Convert to fraction form
    12,245.10/18,338.46 = 9,451.40/x
  3. Step 3: Cross multiply
    12,245.10x = 18,338.46 × 9,451.40
  4. Step 4: Simplify right side
    12,245.10x = 173,324,120.84
  5. Step 5: Solve for x
    x = 173,324,120.84/12,245.10
  6. Step 6: Final answer
    x = 14,154.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.