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Finding the Fourth Proportional to 8,318.21, 12,483.11 and 7,524.12

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Solution

The fourth proportional to 8,318.21, 12,483.11 and 7,524.12 is: 11,291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.21 : 12,483.11 = 7,524.12 : x
  2. Step 2: Convert to fraction form
    8,318.21/12,483.11 = 7,524.12/x
  3. Step 3: Cross multiply
    8,318.21x = 12,483.11 × 7,524.12
  4. Step 4: Simplify right side
    8,318.21x = 93,924,483.24
  5. Step 5: Solve for x
    x = 93,924,483.24/8,318.21
  6. Step 6: Final answer
    x = 11,291.43

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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.