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Finding the Fourth Proportional to 8,219.66, 12,325.84 and 5,099.54

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Solution

The fourth proportional to 8,219.66, 12,325.84 and 5,099.54 is: 7,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.66 : 12,325.84 = 5,099.54 : x
  2. Step 2: Convert to fraction form
    8,219.66/12,325.84 = 5,099.54/x
  3. Step 3: Cross multiply
    8,219.66x = 12,325.84 × 5,099.54
  4. Step 4: Simplify right side
    8,219.66x = 62,856,114.11
  5. Step 5: Solve for x
    x = 62,856,114.11/8,219.66
  6. Step 6: Final answer
    x = 7,647.05

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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.