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Finding the Fourth Proportional to 8,308.75, 12,447.13 and 6,544.42

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Solution

The fourth proportional to 8,308.75, 12,447.13 and 6,544.42 is: 9,804.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.75 : 12,447.13 = 6,544.42 : x
  2. Step 2: Convert to fraction form
    8,308.75/12,447.13 = 6,544.42/x
  3. Step 3: Cross multiply
    8,308.75x = 12,447.13 × 6,544.42
  4. Step 4: Simplify right side
    8,308.75x = 81,459,246.51
  5. Step 5: Solve for x
    x = 81,459,246.51/8,308.75
  6. Step 6: Final answer
    x = 9,804.03

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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.