Home / 8,669.88-12,982.86-6,220.44

Finding the Fourth Proportional to 8,669.88, 12,982.86 and 6,220.44

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Solution

The fourth proportional to 8,669.88, 12,982.86 and 6,220.44 is: 9,314.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.88 : 12,982.86 = 6,220.44 : x
  2. Step 2: Convert to fraction form
    8,669.88/12,982.86 = 6,220.44/x
  3. Step 3: Cross multiply
    8,669.88x = 12,982.86 × 6,220.44
  4. Step 4: Simplify right side
    8,669.88x = 80,759,101.66
  5. Step 5: Solve for x
    x = 80,759,101.66/8,669.88
  6. Step 6: Final answer
    x = 9,314.90

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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.