Home / 12,357.23-18,538.70-3,591.86

Finding the Fourth Proportional to 12,357.23, 18,538.70 and 3,591.86

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Solution

The fourth proportional to 12,357.23, 18,538.70 and 3,591.86 is: 5,388.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.23 : 18,538.70 = 3,591.86 : x
  2. Step 2: Convert to fraction form
    12,357.23/18,538.70 = 3,591.86/x
  3. Step 3: Cross multiply
    12,357.23x = 18,538.70 × 3,591.86
  4. Step 4: Simplify right side
    12,357.23x = 66,588,304.33
  5. Step 5: Solve for x
    x = 66,588,304.33/12,357.23
  6. Step 6: Final answer
    x = 5,388.61

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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.