Home / 12,387.58-18,584.10-3,622.57

Finding the Fourth Proportional to 12,387.58, 18,584.10 and 3,622.57

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Solution

The fourth proportional to 12,387.58, 18,584.10 and 3,622.57 is: 5,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.58 : 18,584.10 = 3,622.57 : x
  2. Step 2: Convert to fraction form
    12,387.58/18,584.10 = 3,622.57/x
  3. Step 3: Cross multiply
    12,387.58x = 18,584.10 × 3,622.57
  4. Step 4: Simplify right side
    12,387.58x = 67,322,203.14
  5. Step 5: Solve for x
    x = 67,322,203.14/12,387.58
  6. Step 6: Final answer
    x = 5,434.65

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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.