Home / 8,316.93-12,464.57-3,380.80

Finding the Fourth Proportional to 8,316.93, 12,464.57 and 3,380.80

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Solution

The fourth proportional to 8,316.93, 12,464.57 and 3,380.80 is: 5,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.93 : 12,464.57 = 3,380.80 : x
  2. Step 2: Convert to fraction form
    8,316.93/12,464.57 = 3,380.80/x
  3. Step 3: Cross multiply
    8,316.93x = 12,464.57 × 3,380.80
  4. Step 4: Simplify right side
    8,316.93x = 42,140,218.26
  5. Step 5: Solve for x
    x = 42,140,218.26/8,316.93
  6. Step 6: Final answer
    x = 5,066.80

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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.