Home / 8,629.80-12,947.88-3,703.28

Finding the Fourth Proportional to 8,629.80, 12,947.88 and 3,703.28

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Solution

The fourth proportional to 8,629.80, 12,947.88 and 3,703.28 is: 5,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.80 : 12,947.88 = 3,703.28 : x
  2. Step 2: Convert to fraction form
    8,629.80/12,947.88 = 3,703.28/x
  3. Step 3: Cross multiply
    8,629.80x = 12,947.88 × 3,703.28
  4. Step 4: Simplify right side
    8,629.80x = 47,949,625.05
  5. Step 5: Solve for x
    x = 47,949,625.05/8,629.80
  6. Step 6: Final answer
    x = 5,556.28

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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.