Home / 8,210.88-12,314.40-2,662.80

Finding the Fourth Proportional to 8,210.88, 12,314.40 and 2,662.80

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Solution

The fourth proportional to 8,210.88, 12,314.40 and 2,662.80 is: 3,993.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.88 : 12,314.40 = 2,662.80 : x
  2. Step 2: Convert to fraction form
    8,210.88/12,314.40 = 2,662.80/x
  3. Step 3: Cross multiply
    8,210.88x = 12,314.40 × 2,662.80
  4. Step 4: Simplify right side
    8,210.88x = 32,790,784.32
  5. Step 5: Solve for x
    x = 32,790,784.32/8,210.88
  6. Step 6: Final answer
    x = 3,993.58

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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.