Home / 8,237.96-12,358.13-2,690.15

Finding the Fourth Proportional to 8,237.96, 12,358.13 and 2,690.15

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Solution

The fourth proportional to 8,237.96, 12,358.13 and 2,690.15 is: 4,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,237.96 : 12,358.13 = 2,690.15 : x
  2. Step 2: Convert to fraction form
    8,237.96/12,358.13 = 2,690.15/x
  3. Step 3: Cross multiply
    8,237.96x = 12,358.13 × 2,690.15
  4. Step 4: Simplify right side
    8,237.96x = 33,245,148.18
  5. Step 5: Solve for x
    x = 33,245,148.18/8,237.96
  6. Step 6: Final answer
    x = 4,035.61

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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.