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Finding the Fourth Proportional to 8,277.80, 12,407.10 and 3,344.20

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Solution

The fourth proportional to 8,277.80, 12,407.10 and 3,344.20 is: 5,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,277.80 : 12,407.10 = 3,344.20 : x
  2. Step 2: Convert to fraction form
    8,277.80/12,407.10 = 3,344.20/x
  3. Step 3: Cross multiply
    8,277.80x = 12,407.10 × 3,344.20
  4. Step 4: Simplify right side
    8,277.80x = 41,491,823.82
  5. Step 5: Solve for x
    x = 41,491,823.82/8,277.80
  6. Step 6: Final answer
    x = 5,012.42

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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.