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Finding the Fourth Proportional to 8,394.68, 11,567.56 and 6,494.72

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Solution

The fourth proportional to 8,394.68, 11,567.56 and 6,494.72 is: 8,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.68 : 11,567.56 = 6,494.72 : x
  2. Step 2: Convert to fraction form
    8,394.68/11,567.56 = 6,494.72/x
  3. Step 3: Cross multiply
    8,394.68x = 11,567.56 × 6,494.72
  4. Step 4: Simplify right side
    8,394.68x = 75,128,063.28
  5. Step 5: Solve for x
    x = 75,128,063.28/8,394.68
  6. Step 6: Final answer
    x = 8,949.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.