Home / 8,237.46-12,358.15-2,690.81

Finding the Fourth Proportional to 8,237.46, 12,358.15 and 2,690.81

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Solution

The fourth proportional to 8,237.46, 12,358.15 and 2,690.81 is: 4,036.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,237.46 : 12,358.15 = 2,690.81 : x
  2. Step 2: Convert to fraction form
    8,237.46/12,358.15 = 2,690.81/x
  3. Step 3: Cross multiply
    8,237.46x = 12,358.15 × 2,690.81
  4. Step 4: Simplify right side
    8,237.46x = 33,253,433.60
  5. Step 5: Solve for x
    x = 33,253,433.60/8,237.46
  6. Step 6: Final answer
    x = 4,036.86

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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.