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Finding the Fourth Proportional to 8,803.67, 13,217.78 and 8,401.77

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Solution

The fourth proportional to 8,803.67, 13,217.78 and 8,401.77 is: 12,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.67 : 13,217.78 = 8,401.77 : x
  2. Step 2: Convert to fraction form
    8,803.67/13,217.78 = 8,401.77/x
  3. Step 3: Cross multiply
    8,803.67x = 13,217.78 × 8,401.77
  4. Step 4: Simplify right side
    8,803.67x = 111,052,768.48
  5. Step 5: Solve for x
    x = 111,052,768.48/8,803.67
  6. Step 6: Final answer
    x = 12,614.38

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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.