Home / 12,495.42-18,743.46-5,471.81

Finding the Fourth Proportional to 12,495.42, 18,743.46 and 5,471.81

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Solution

The fourth proportional to 12,495.42, 18,743.46 and 5,471.81 is: 8,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.42 : 18,743.46 = 5,471.81 : x
  2. Step 2: Convert to fraction form
    12,495.42/18,743.46 = 5,471.81/x
  3. Step 3: Cross multiply
    12,495.42x = 18,743.46 × 5,471.81
  4. Step 4: Simplify right side
    12,495.42x = 102,560,558.15
  5. Step 5: Solve for x
    x = 102,560,558.15/12,495.42
  6. Step 6: Final answer
    x = 8,207.85

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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.