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Finding the Fourth Proportional to 8,910.27, 13,363.20 and 3,977.19

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Solution

The fourth proportional to 8,910.27, 13,363.20 and 3,977.19 is: 5,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.27 : 13,363.20 = 3,977.19 : x
  2. Step 2: Convert to fraction form
    8,910.27/13,363.20 = 3,977.19/x
  3. Step 3: Cross multiply
    8,910.27x = 13,363.20 × 3,977.19
  4. Step 4: Simplify right side
    8,910.27x = 53,147,985.41
  5. Step 5: Solve for x
    x = 53,147,985.41/8,910.27
  6. Step 6: Final answer
    x = 5,964.80

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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.