Home / 8,619.16-12,930.78-3,073

Finding the Fourth Proportional to 8,619.16, 12,930.78 and 3,073

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Solution

The fourth proportional to 8,619.16, 12,930.78 and 3,073 is: 4,610.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.16 : 12,930.78 = 3,073 : x
  2. Step 2: Convert to fraction form
    8,619.16/12,930.78 = 3,073/x
  3. Step 3: Cross multiply
    8,619.16x = 12,930.78 × 3,073
  4. Step 4: Simplify right side
    8,619.16x = 39,736,286.94
  5. Step 5: Solve for x
    x = 39,736,286.94/8,619.16
  6. Step 6: Final answer
    x = 4,610.23

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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.