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Finding the Fourth Proportional to 12,494.05, 18,741.08 and 3,260.05

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Solution

The fourth proportional to 12,494.05, 18,741.08 and 3,260.05 is: 4,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.05 : 18,741.08 = 3,260.05 : x
  2. Step 2: Convert to fraction form
    12,494.05/18,741.08 = 3,260.05/x
  3. Step 3: Cross multiply
    12,494.05x = 18,741.08 × 3,260.05
  4. Step 4: Simplify right side
    12,494.05x = 61,096,747.85
  5. Step 5: Solve for x
    x = 61,096,747.85/12,494.05
  6. Step 6: Final answer
    x = 4,890.07

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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.