Home / 8,218.98-12,329.55-4,323.60

Finding the Fourth Proportional to 8,218.98, 12,329.55 and 4,323.60

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Solution

The fourth proportional to 8,218.98, 12,329.55 and 4,323.60 is: 6,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.98 : 12,329.55 = 4,323.60 : x
  2. Step 2: Convert to fraction form
    8,218.98/12,329.55 = 4,323.60/x
  3. Step 3: Cross multiply
    8,218.98x = 12,329.55 × 4,323.60
  4. Step 4: Simplify right side
    8,218.98x = 53,308,042.38
  5. Step 5: Solve for x
    x = 53,308,042.38/8,218.98
  6. Step 6: Final answer
    x = 6,485.97

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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.