Home / 8,619.54-12,929.37-3,073.11

Finding the Fourth Proportional to 8,619.54, 12,929.37 and 3,073.11

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Solution

The fourth proportional to 8,619.54, 12,929.37 and 3,073.11 is: 4,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.54 : 12,929.37 = 3,073.11 : x
  2. Step 2: Convert to fraction form
    8,619.54/12,929.37 = 3,073.11/x
  3. Step 3: Cross multiply
    8,619.54x = 12,929.37 × 3,073.11
  4. Step 4: Simplify right side
    8,619.54x = 39,733,376.24
  5. Step 5: Solve for x
    x = 39,733,376.24/8,619.54
  6. Step 6: Final answer
    x = 4,609.69

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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.