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Finding the Fourth Proportional to 11,333.43, 16,988.43 and 8,205.68

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Solution

The fourth proportional to 11,333.43, 16,988.43 and 8,205.68 is: 12,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,333.43 : 16,988.43 = 8,205.68 : x
  2. Step 2: Convert to fraction form
    11,333.43/16,988.43 = 8,205.68/x
  3. Step 3: Cross multiply
    11,333.43x = 16,988.43 × 8,205.68
  4. Step 4: Simplify right side
    11,333.43x = 139,401,693.52
  5. Step 5: Solve for x
    x = 139,401,693.52/11,333.43
  6. Step 6: Final answer
    x = 12,300.04

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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.