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Finding the Fourth Proportional to 8,394.67, 12,575.58 and 6,437.31

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Solution

The fourth proportional to 8,394.67, 12,575.58 and 6,437.31 is: 9,643.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.67 : 12,575.58 = 6,437.31 : x
  2. Step 2: Convert to fraction form
    8,394.67/12,575.58 = 6,437.31/x
  3. Step 3: Cross multiply
    8,394.67x = 12,575.58 × 6,437.31
  4. Step 4: Simplify right side
    8,394.67x = 80,952,906.89
  5. Step 5: Solve for x
    x = 80,952,906.89/8,394.67
  6. Step 6: Final answer
    x = 9,643.37

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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.