Home / 8,175.10-12,234.30-4,890.55

Finding the Fourth Proportional to 8,175.10, 12,234.30 and 4,890.55

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Solution

The fourth proportional to 8,175.10, 12,234.30 and 4,890.55 is: 7,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,175.10 : 12,234.30 = 4,890.55 : x
  2. Step 2: Convert to fraction form
    8,175.10/12,234.30 = 4,890.55/x
  3. Step 3: Cross multiply
    8,175.10x = 12,234.30 × 4,890.55
  4. Step 4: Simplify right side
    8,175.10x = 59,832,455.87
  5. Step 5: Solve for x
    x = 59,832,455.87/8,175.10
  6. Step 6: Final answer
    x = 7,318.87

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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.