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Finding the Fourth Proportional to 8,437.38, 12,636.93 and 6,765.69

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Solution

The fourth proportional to 8,437.38, 12,636.93 and 6,765.69 is: 10,133.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.38 : 12,636.93 = 6,765.69 : x
  2. Step 2: Convert to fraction form
    8,437.38/12,636.93 = 6,765.69/x
  3. Step 3: Cross multiply
    8,437.38x = 12,636.93 × 6,765.69
  4. Step 4: Simplify right side
    8,437.38x = 85,497,550.93
  5. Step 5: Solve for x
    x = 85,497,550.93/8,437.38
  6. Step 6: Final answer
    x = 10,133.19

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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.