Home / 8,181.60-12,256.20-4,884.90

Finding the Fourth Proportional to 8,181.60, 12,256.20 and 4,884.90

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Solution

The fourth proportional to 8,181.60, 12,256.20 and 4,884.90 is: 7,317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.60 : 12,256.20 = 4,884.90 : x
  2. Step 2: Convert to fraction form
    8,181.60/12,256.20 = 4,884.90/x
  3. Step 3: Cross multiply
    8,181.60x = 12,256.20 × 4,884.90
  4. Step 4: Simplify right side
    8,181.60x = 59,870,311.38
  5. Step 5: Solve for x
    x = 59,870,311.38/8,181.60
  6. Step 6: Final answer
    x = 7,317.68

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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.