Home / 8,628.92-12,943.67-2,388.41

Finding the Fourth Proportional to 8,628.92, 12,943.67 and 2,388.41

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Solution

The fourth proportional to 8,628.92, 12,943.67 and 2,388.41 is: 3,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.92 : 12,943.67 = 2,388.41 : x
  2. Step 2: Convert to fraction form
    8,628.92/12,943.67 = 2,388.41/x
  3. Step 3: Cross multiply
    8,628.92x = 12,943.67 × 2,388.41
  4. Step 4: Simplify right side
    8,628.92x = 30,914,790.86
  5. Step 5: Solve for x
    x = 30,914,790.86/8,628.92
  6. Step 6: Final answer
    x = 3,582.70

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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.