Home / 8,231.60-12,339.30-4,068.20

Finding the Fourth Proportional to 8,231.60, 12,339.30 and 4,068.20

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Solution

The fourth proportional to 8,231.60, 12,339.30 and 4,068.20 is: 6,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.60 : 12,339.30 = 4,068.20 : x
  2. Step 2: Convert to fraction form
    8,231.60/12,339.30 = 4,068.20/x
  3. Step 3: Cross multiply
    8,231.60x = 12,339.30 × 4,068.20
  4. Step 4: Simplify right side
    8,231.60x = 50,198,740.26
  5. Step 5: Solve for x
    x = 50,198,740.26/8,231.60
  6. Step 6: Final answer
    x = 6,098.30

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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.