Home / 8,821.32-13,233.78-2,977.80

Finding the Fourth Proportional to 8,821.32, 13,233.78 and 2,977.80

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Solution

The fourth proportional to 8,821.32, 13,233.78 and 2,977.80 is: 4,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.32 : 13,233.78 = 2,977.80 : x
  2. Step 2: Convert to fraction form
    8,821.32/13,233.78 = 2,977.80/x
  3. Step 3: Cross multiply
    8,821.32x = 13,233.78 × 2,977.80
  4. Step 4: Simplify right side
    8,821.32x = 39,407,550.08
  5. Step 5: Solve for x
    x = 39,407,550.08/8,821.32
  6. Step 6: Final answer
    x = 4,467.31

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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.