Home / 8,419.12-12,625.98-3,976.36

Finding the Fourth Proportional to 8,419.12, 12,625.98 and 3,976.36

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Solution

The fourth proportional to 8,419.12, 12,625.98 and 3,976.36 is: 5,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.12 : 12,625.98 = 3,976.36 : x
  2. Step 2: Convert to fraction form
    8,419.12/12,625.98 = 3,976.36/x
  3. Step 3: Cross multiply
    8,419.12x = 12,625.98 × 3,976.36
  4. Step 4: Simplify right side
    8,419.12x = 50,205,441.83
  5. Step 5: Solve for x
    x = 50,205,441.83/8,419.12
  6. Step 6: Final answer
    x = 5,963.26

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1.5x scale

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.