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Finding the Fourth Proportional to 8,310.03, 12,440.31 and 8,299.09

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Solution

The fourth proportional to 8,310.03, 12,440.31 and 8,299.09 is: 12,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.03 : 12,440.31 = 8,299.09 : x
  2. Step 2: Convert to fraction form
    8,310.03/12,440.31 = 8,299.09/x
  3. Step 3: Cross multiply
    8,310.03x = 12,440.31 × 8,299.09
  4. Step 4: Simplify right side
    8,310.03x = 103,243,252.32
  5. Step 5: Solve for x
    x = 103,243,252.32/8,310.03
  6. Step 6: Final answer
    x = 12,423.93

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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.