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Finding the Fourth Proportional to 9,343.20, 13,974.30 and 8,363.10

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Solution

The fourth proportional to 9,343.20, 13,974.30 and 8,363.10 is: 12,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.20 : 13,974.30 = 8,363.10 : x
  2. Step 2: Convert to fraction form
    9,343.20/13,974.30 = 8,363.10/x
  3. Step 3: Cross multiply
    9,343.20x = 13,974.30 × 8,363.10
  4. Step 4: Simplify right side
    9,343.20x = 116,868,468.33
  5. Step 5: Solve for x
    x = 116,868,468.33/9,343.20
  6. Step 6: Final answer
    x = 12,508.40

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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.