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Finding the Fourth Proportional to 8,208.59, 12,284.87 and 6,893.69

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Solution

The fourth proportional to 8,208.59, 12,284.87 and 6,893.69 is: 10,317.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.59 : 12,284.87 = 6,893.69 : x
  2. Step 2: Convert to fraction form
    8,208.59/12,284.87 = 6,893.69/x
  3. Step 3: Cross multiply
    8,208.59x = 12,284.87 × 6,893.69
  4. Step 4: Simplify right side
    8,208.59x = 84,687,989.58
  5. Step 5: Solve for x
    x = 84,687,989.58/8,208.59
  6. Step 6: Final answer
    x = 10,317.00

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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.